Based on your question, the motor unit action potential (MUAP) that corresponds to the smallest number of muscle fibers contracting is the one with the lowest amplitude. The amplitude of a MUAP is directly related to the number of muscle fibers activated, so a lower amplitude indicates fewer muscle fibers contracting.
The motor unit action potential (MUAP) that corresponds to the smallest number of muscle fibers contracting is typically referred to as a "low amplitude" or "small" MUAP. This MUAP reflects the activation of a small number of muscle fibers by a single motor neuron. The other recorded MUAPs with higher amplitudes correspond to the activation of larger numbers of muscle fibers by the same motor neuron. It is worth noting that the specific number of muscle fibers that are activated by a single motor neuron can vary depending on the muscle and the individual.
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Cellular respiration occurs in the muscle cells in a horse's thigh. Glucose is broken down producing carbon dioxide and water. What is the result of this cellular activity for the horse?
The result of cellular respiration in the muscle cells of a horse's thigh is the production of ATP (adenosine triphosphate) that can be used for energy.
During cellular respiration, glucose (C₆H₁₂O₆) is oxidized and broken down into carbon dioxide (CO₂), water (H₂O), and energy in the form of ATP. In the presence of oxygen, this process is known as aerobic respiration, which is the primary means of producing ATP in eukaryotic cells.
The carbon dioxide produced in this process is carried to the lungs where it is exhaled, while the water produced can be used to help maintain the body's hydration.
The ATP produced is then used by the horse's muscle cells to carry out various functions such as movement, maintenance of body temperature, and other metabolic processes. Therefore, cellular respiration plays a vital role in providing the horse with the energy it needs to carry out its daily activities.
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which of the following is not a growth factor for harmful bacteria a)water b)oxygen c)protein d)minerals
All of the options are growth factors for bacteria.
What are bacterial growth factors?The growth factors of bacteria generally include:
Water: Bacteria require water to survive and grow, as it is necessary for various metabolic processes.Oxygen: Some bacteria require oxygen to grow (aerobic bacteria), while others can grow without it (anaerobic bacteria).Protein: Bacteria require protein to build and maintain their cellular structures and perform various metabolic functions.Minerals: Bacteria require various minerals, such as iron, magnesium, and potassium, to carry out metabolic processes.In other words, all of the options listed can be considered growth factors for harmful bacteria, depending on the specific type of bacteria and the conditions under which they are growing.
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Jackson creates the model shown in the diagram. He forms a clay mountain at the bottom of a plastic container and adds water to the container. Jackson then places a lid on top of the container and a petri dish filled with ice cubes on top of the lid. Next, he places a lamp over the container and turns it on.
a. What observation would indicate to Jackson that water is being cycled within the model?
b. Explain why the observation is evidence that water is being cycled within the model.
a. Jackson would observe condensation on the lid of the container.
b. The observation of condensation on the lid of the container is evidence that water is being cycled within the model. When the lamp heats up the water in the container, the water evaporates and rises up to the cooler lid where it condenses and forms droplets. These droplets then fall back into the container, completing the cycle of evaporation, condensation, and precipitation. This process mimics the natural water cycle on Earth where water evaporates from oceans and other bodies of water, forms clouds, and then falls back to Earth as precipitation.
Question 9 (1 point)
Choose ALL that apply for raft spiders.
Raft spider sight weight and large surface area allow it to walk on water.
Raft spider's heavy weight and small surface area allow it to walk on water
Raft spiders sprint along submerged plants to catch underwater prey.
Raft spider's legs have a waxy surface that repels water
Cortion 11
Raft spiders, also known as fishing spiders, are fascinating creatures that inhabit wetland habitats throughout the world. The correct option is A. Raft spider sight weight and large surface area allow it to walk on water.
C: Raft spiders sprint along submerged plants to catch underwater prey.
D. Raft spider's legs have a waxy surface that repels water
These spiders are unique in that they have evolved to sprint along submerged plants in order to catch their underwater prey. This incredible ability allows them to move quickly and efficiently across the water's surface, making them one of the most successful predators in their environment.
Raft spiders are well adapted to life in wetlands and have a number of unique adaptations that allow them to survive in this challenging environment. They have large, flat legs that enable them to move quickly across the water's surface without sinking. They also have specialized hairs on their legs that allow them to detect the slightest movements in the water, helping them to locate prey.
One of the most interesting things about raft spiders is their hunting strategy. These spiders use a combination of speed and stealth to catch their prey. They sprint along the surface of the water, using their specialized hairs to detect the movements of potential prey. Once they have located their target, they pounce on it with lightning speed, using their powerful jaws to immobilize it.
Overall, raft spiders are fascinating creatures that have evolved unique adaptations to help them survive in their watery world. Their ability to sprint along submerged plants and catch underwater prey is truly remarkable and makes them one of the most impressive predators in the animal kingdom.
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30 POINTS
1. What are some of the animals that have gone extinct? How have humans reacted to extinction?
2. What is ancient DNA?
3. How could scientists bring back an extinct species? How does this relate to genetics?
4. Why would it be important to sequence, as much as possible, the genome of extinct species?
5. Which research or conservation project discussed in the video did you find most interesting? Why?
Scientists could potentially bring back an extinct species by cloning it using its preserved genetic material.
What is the DNA?
They could also use genetic engineering techniques to modify the DNA of living organisms to resemble that of the extinct species. These techniques involve extracting and analyzing the ancient DNA to determine its genetic makeup and using that information to recreate the species' genome.
This relates to genetics because the genetic makeup of an organism determines its physical and behavioral characteristics, and by analyzing the DNA of an extinct species, scientists can understand its unique traits and potentially recreate them.
Why would it be important to sequence, as much as possible, the genome of extinct species?
Sequencing the genome of extinct species is important because it provides valuable information about the genetic makeup of these organisms, their evolution, and their relationships to living species. It can also help scientists understand the reasons for their extinction and potentially develop ways to prevent future extinctions.Learn more about DNA from
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Which is a consequence of global warming?cooling oceansgrowing glaciersless frequent hurricanesrising sea levels
The consequence of global warming is rising sea levels.
As the Earth's temperature increases due to the accumulation of greenhouse gases in the atmosphere, the melting of ice sheets and glaciers causes the sea levels to rise.
This rise in sea levels can lead to increased flooding, erosion, and loss of habitat for coastal ecosystems and wildlife. Additionally, as sea levels rise, saltwater intrusion can occur in coastal aquifers, affecting freshwater resources.
The increase in temperature can also cause changes in ocean currents and weather patterns, leading to more frequent and intense hurricanes, typhoons, and cyclones. It is crucial to reduce greenhouse gas emissions and implement measures to adapt to the impacts of global warming to prevent further damage to the Earth's ecosystems and the well-being of its inhabitants.
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big bend national park in west texas is mostly desert, where rainfall averages only about 25 centimeters per year. yet, it is not uncommon when hiking in this extremely arid zone to encounter mosses and ferns in certain areas. what adaptive characteristics of both mosses and ferns makes it possible that they can survive for many generations in dry deserts when water becomes infrequently available?
Based on these additional observations the “flower of stone" are inferred as it is a fern and the cone-like structures are sori, the correct option is B.
The presence of cone-like structures emitting spores of two different sizes is a characteristic feature of ferns, and these structures are called sori. Therefore, it can be inferred that the "flower of stone" is a fern.
Additionally, the fact that the plant does not produce seeds but reproduces through spores further supports the inference that it is a fern. The Y-shaped structure of the roots branching only at the growing tip is a characteristic feature of ferns as well, the correct option is B.
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The complete question is:
Big Bend National Park in Texas is mostly Chihuahuan desert, where rainfall averages about 25 centimeters per year. Yet, it is not uncommon when hiking in this extremely arid zone to encounter mosses and ferns. One such plant is called the "flower of stone." It is not a flowering plant, nor does it produce seeds. Under arid conditions, its leaflike structures curl up. However, when it rains, it unfurls its leaves, which form a bright green rosette on the desert floor. Consequently, it is sometimes called the "resurrection plant." At first glance, it could be a fern, a true moss, or a spike mosS Upon closer inspection of the leaves of "lower of stone," one can observe tiny, cone-like structures. Each cone-like structure emits spores of two different sizes. Further investigation also reveals that the roots of the "flower of stone" branch only at the growing tip of the root, forming a Y-shaped structure. Based on these additional observations, which of the following can be properly inferred about the "flower of stone"?
A) It is heterosporous and has separate male and female gametophytes.
B) It is a fern and the cone-like structures are sori.
C) It is heterosporous, it is a fern, and the cone-like structures are sori.
D) It is heterosporous, it is a lycophyte, and it has separate male and female gametophytes.
Organisms use different methods to obtain energy that they need to perform life functions. Which of the following can be an autotroph or a heterotroph?
A. bacteria and fungi
B. fungi and viruses
C. bacteria and protists
D. fungi and protists
The organisms that can be an autotroph or a heterotroph are bacteria and protists (option C).
What are autotroph and heterotrophs?Autotroph is any organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.
On the other hand, a heterotroph is an organism which requires an external supply of energy in the form of food as it cannot synthesize its own.
Protists are living organisms that belong to the kingdom Protista, which can either be autotrophic like green algae or heterotrophic like amoeba.
Also, certain bacteria like blue green algae are autotrophic while Pseudomonas is an example of heterotrophic bacterium
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What type of succession would occur after a glacier moved and uncovered new land?.
The type of succession that would occur after a glacier moved and uncovered new land is called primary succession. Primary succession is the process of plant and animal colonization of an area that has never before supported life.
In the case of a glacier retreat, the exposed land is typically barren and devoid of life, with no pre-existing soil. In the early stages of primary succession, lichens and mosses are typically the first organisms to colonize the area.
These pioneer species help to break down rock and other materials, creating soil over time. As the soil deepens, larger and more complex plants can establish themselves. Eventually, a diverse community of plants and animals will develop, forming a stable ecosystem.
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At the end of _____ and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. at the end of _____ and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. interphase metaphase ii telophase i telophase ii telophase submit
At the end of meiosis II and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. Meiosis II is the second division of meiosis and it follows meiosis I. During meiosis II, the two sister chromatids of each chromosome are separated from each other, resulting in the production of haploid daughter cells.
The process of meiosis involves two rounds of cell division, each consisting of different stages. In meiosis I, the homologous chromosomes pair up and exchange genetic material in a process called crossing over. The chromosomes are then separated, resulting in the production of two haploid daughter cells that each contain a mix of genetic material from both parents.
In meiosis II, the sister chromatids of each chromosome are separated from each other. This results in the production of four haploid daughter cells, each containing a single set of chromosomes that each consist of two sister chromatids. These haploid daughter cells can then go on to participate in sexual reproduction, combining with another haploid cell to form a new, genetically diverse individual.
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At the end of Telophase I and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. At the end of Telophase II and cytokinesis, haploid cells contain chromosomes that each exist independently.
Explanation:The question is asking about the specific stages in meiosis where haploid cells contain chromosomes that each consist of two sister chromatids. At the end of Telophase I and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. This happens because during Telophase I, chromosome pairs reach the poles of the cell, and the cytoplasm divides. Each resulting haploid cell, therefore, has the half number of chromosomes, and each chromosome consists of two sister chromatids. On the other hand, at the end of Telophase II and cytokinesis, haploid cells contain chromosomes that each exist independently, not as sister chromatids, because during Anaphase II, the sister chromatids separate.
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Hidaya and saburi
mother’s genotype:
father’s genotype:
offspring genotype %: offspring phenotype %:
Hidaya and Saburi’s genotype refers to the genetic makeup of the parents. Genotype is the set of genes that an individual carries for a particular trait. In the case of Hidaya and Saburi, their genotype would determine the traits that their offspring may inherit.
The offspring genotype percentage is the probability of the offspring inheriting a particular set of genes from their parents. This percentage is determined by the laws of inheritance and the parents’ genotype. The offspring phenotype percentage is the probability of the offspring expressing a particular physical trait based on their genotype.
For example, if Hidaya and Saburi both have the genotype of Aa, the offspring genotype percentage would be 25% AA, 50% Aa, and 25% aa. The offspring phenotype percentage would depend on the specific traits that the A and a alleles code for. In general, if the dominant allele (A) codes for a trait such as brown eyes, and the recessive allele (a) codes for blue eyes, then 75% of the offspring would have brown eyes, and 25% would have blue eyes.
It’s important to note that genetics is not always straightforward, and there may be variations and exceptions. However, understanding the basics of genotype and phenotype percentages can help predict the traits that offspring may inherit from their parents.
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complete question is:
Show the cross between Hidaya and Saburi:
Mother’s genotype: ____________ Father’s genotype: ____________ Genotype %: _________________ ____________________________ Phenotype %:________________
what theory states - organs that are similar in origin but not necessarily in function. (8 letter word)
Answer:
hi
Explanation:
Homologous organs are organs that evolve from the same ancestor. They have the same organ structure but different organ functions. Eg, the Forelimbs of humans, whales, cats, and dogs. Homologous organs are a result of divergent evolution.
Use the drop-down menus below to complete the following statement. the system contains glands that secrete hormones into the bloodstream, whereas the system secretes substances through ducts.
The endocrine system contains glands that secrete hormones into the bloodstream, whereas the exocrine system secretes substances through ducts.
The endocrine system is responsible for producing and secreting hormones directly into the bloodstream to regulate various bodily functions, such as growth and development, metabolism, and reproduction.
These hormones act as chemical messengers and travel throughout the body to target cells or organs that have specific receptors for that hormone. The glands of the endocrine system include the pituitary gland, thyroid gland, adrenal gland, and pancreas, among others.
On the other hand, the exocrine system includes glands that secrete their products through ducts or tubes into a particular organ or onto a surface, such as the skin or digestive tract.
These secretions may include enzymes, mucus, or sweat, and serve various functions, such as aiding in digestion or protecting the skin from dehydration or infection.
Examples of exocrine glands include the salivary glands, sweat glands, and mammary glands.
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Answer: here's your answer
Explanation
✔ endocrine
endocrine✔
✔ endocrineexocrine pituitary gland✔
endocrine thyroid gland
endocrine✔ exocrine salivary glands
Where would you expect to find a convection current that occurs between land and water?
Answer:The Earth's mantle
Explanation:
in addition to carbon dioxide and water state two other conditions necessary for photosynthesis
Answer:
sunlight and chlorophyll
Explanation:
these two conditions must be present with water and carbon dioxide for photosynthesis to take place in plant organisms
hope this helps! :)
Answer:
Sunlight and chlorophyll must be present along with the carbon dioxide and water for the process of photosynthesis to take place in plants.
Hope this helps :)
Pls brainliest...
Which two viral characteristics provide evidence to support the
argument that viruses are more similar to living components than to
nonliving components of an ecosystem?
A. Viruses contain genetic material.
B. Viruses are made of cells.
c. Viruses use and store energy to grow.
D. Viruses reproduce independently.
E. Viruses evolve through mutation and natural selection
Viruses share several characteristics with living organisms, such as containing genetic material, being made of cells, using and storing energy to grow, reproducing independently, and evolving through mutation and natural selection.
Here, all the options are correct.
This evidence reveals that viruses are capable of many of the same functions as living organisms. For example, viruses use and store energy to power their growth and evolution, just like living organisms. They also possess genetic material and can reproduce independently, which is a trait shared by all living organisms.
Additionally, viruses can mutate and evolve, which is a necessary component for the continued survival of any species. These evidence-based characteristics demonstrate that viruses are more similar to living components than to nonliving components of an ecosystem.
Therefore, all the options are correct.
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What happens if a living thing dies
Answer:
As a living organism it would either decay and rot away due to the biological material it has—fungus would take over and have the living thing mold and rot away.
Discuss how human impact on the environment that could lead to a change in an organism's dna and alter the growth and reproduction of individuals. please provide an example of an organism.
Answer:
A human impact such as increased land use can lead to changes in different organisms DNA. As we take up more space and destroy increasing numbers of habitats to build infrastructure and places to live for the growing population, organisms are forced to relocate to new habitats and ecosystems. Because of this, there organisms are introduced to a new food web, which can alter how they interact with their environment. If they are competing with another breed of animal who is able to obtain a certain food source and they are not because of a certain feature on their bodies, throughout the process of evolution they could develop that trait that they were missing previously and become more equal on the playing field with the species that had been there long before them.
Why does an action potential travel in one direction down an axon?.
An action potential is an electrical signal that travels down the axon of a neuron. One of the key features of an action potential is that it travels in one direction only, from the cell body of the neuron to its axon terminal.
This directional flow of the action potential is due to the refractory period of the neuron. After an action potential is fired, the neuron enters a brief refractory period during which it is unable to generate another action potential in the same direction.
This refractory period ensures that the action potential moves only in one direction, preventing the signal from moving backward and interfering with other signals in the nervous system.
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ovulation begins when a mature egg(ovum) is released from an ovary. peristaltic contractions and the action of cilia transport the ovum through the fallopian tube to the uterus. the hormones estrogen, follicle-stimulating hormone (fsh), luteinizing hormone, and progesterone regulate and control this process. reading this senario which body systems interact with eachother
The scenario described involves the interaction of several body systems to facilitate ovulation and fertilization, with the ovaries releasing the mature egg and the fallopian tubes and uterus providing the necessary environment for fertilization and implantation.
Hormones play a crucial role in regulating the reproductive system. Estrogen and progesterone, produced by the ovaries, help to prepare the uterus for implantation and maintain the pregnancy. Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are produced by the pituitary gland and are responsible for regulating ovulation and the menstrual cycle.
The nervous system also plays a role in the process of ovulation, with signals from the brain triggering the release of hormones from the pituitary gland. The muscular system is also involved, with peristaltic contractions and ciliary action helping to move the ovum through the fallopian tube.
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Would samples that were digested with ecori have a different pattern than the same sample digested with smal?
Yes, samples that were digested with EcoRI would have a different pattern than the same sample digested with SmaI.
This is because EcoRI and SmaI are two different restriction endonucleases, which are enzymes that have the ability to cut DNA at specific sites. The DNA substrate of EcoRI has a recognition sequence of GAATTC, meaning that the enzyme will recognize and cleave the phosphodiester bond located between the G and A bases.
On the other hand, SmaI's recognition sequence is CCCGGG, meaning that the enzyme will recognize and cleave the phosphodiester bond located between the C and G bases. Therefore, EcoRI and SmaI will both recognize different sequences in the same sample and consequently cut the DNA in different places, resulting in a different pattern after digestion.
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which of the options is not a general requirement for complex multicellular life? cells must communicate with one another. cells must participate in a network of genetic interactions that regulate cell division. cells must stick together. all of these choices are correct. individual cells must retain a full range of functions, including reproduction.
The option that is not a general requirement for complex multicellular life is (e)."individual cells must retain a full range of functions, including reproduction." is correct option.
In fact, in complex multicellular organisms, cells specialize and differentiate into various types with specific functions, and reproduction is often performed by specialized cells or structures. The other three options, namely, cells must communicate with one another, cells must participate in a network of genetic interactions that regulate cell division, and cells must stick together are all essential requirements for complex multicellular life.
Therefore, the correct option is (e).
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When did the first homo sapiens arrive in the americas?.
Answer:
18,000 years ago
Explanation:
Most archaeologists accept that humans were in the Americas 18,000 years ago
In this relationship the barnacles Drive benefit there’s no benefit of this relationship is an example of
The statement "In this relationship, the barnacles drive benefit; there’s no benefit of this relationship" is an example of commensalism.
Commensalism is a type of symbiotic relationship between two organisms in which one organism benefits while the other is not affected either positively or negatively.
In this relationship, the barnacles are the beneficiary organism while the other organism is neither helped nor harmed.
Barnacles are often found attached to the surface of whales, turtles, and other marine animals. The barnacles gain a habitat and protection from predators by attaching themselves to these animals.
Meanwhile, the host animals are neither helped nor harmed by the barnacles' presence. This relationship is an example of commensalism since only one organism is benefited while the other is unaffected.
Commensalism is one of the three types of symbiotic relationships, along with mutualism and parasitism. Mutualism benefits both organisms, while parasitism benefits one organism at the expense of the other.
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The karyotype of a trisomic individual is symbolized as ____.
Answer:
2n+1.
Explanation:
The karotype of a trisomic individual is symbolized as 2n+1.
Which structure serves to increase the speed with which a signal travels within a neuron?.
The structure that serves to increase the speed with which a signal travels within a neuron is called the myelin sheath.
The myelin sheath is a layer of insulation that surrounds the axon of a neuron and helps to speed up the transmission of electrical signals (or action potentials) along the axon.
The myelin sheath is made up of specialized cells called glial cells (oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system) that wrap themselves around the axon, leaving small gaps or nodes of Ranvier between them.
These nodes allow the electrical signal to jump quickly from one node to the next, resulting in faster conduction of the signal.
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1. The pyramid shown represents a single food chain in an ecosystem. What happens to the energy as it moves from one trophic level to the next?
2. Why is a pyramid like the one shown a good representation of the energy in a food chain?
A pyramid of energy is a useful tool for understanding the flow of energy through an ecosystem and the efficiency of energy transfer between trophic levels.
What happens to energy in a food pyramid?As the energy moves from one trophic level to the next in a food chain, it decreases. This is because only a fraction of the energy that is consumed by organisms at each trophic level is passed on to the next level. This fraction is typically around 10%, with the remaining energy being lost as heat or used for metabolic processes.
A pyramid like the one shown is a good representation of the energy in a food chain because it illustrates the decreasing amount of energy available at each successive trophic level. The base of the pyramid represents the primary producers, which have the most energy available to them.
As the energy is transferred up the pyramid to higher trophic levels, the amount of energy available decreases, resulting in a smaller biomass at each level.
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A greater concentration of substances in urine (e.g., glucose or protein) would cause the urine to have a(n) __________ specific gravity than water.
A greater concentration of substances in urine such as glucose or protein would cause the urine to have a higher specific gravity than water.
The specific gravity of urine reflects the density of particles in the urine sample. Water has a specific gravity of 1.000, while urine typically has a specific gravity ranging from 1.003 to 1.035. This variation in specific gravity is due to the varying concentration of solutes in the urine. If the urine contains higher amounts of glucose or protein, the specific gravity will be higher, indicating that the urine is more concentrated than water.
Elevated levels of glucose or protein in urine may indicate underlying health conditions such as diabetes or kidney disease. Regular monitoring of specific gravity can provide valuable information about kidney function and overall health. In summary, a greater concentration of substances in urine would result in a higher specific gravity than water, reflecting a higher concentration of solutes in the urine.
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What do these two changes have in common?
rust forming on a metal gate
an old sandwich rotting in a trashcan
A. Both are physical changes
B. Both are caused by heating
C. Both are chemical changes
D. Both are caused by cooling
Answer:
Explanation:
Neither of the changes are caused by heating or cooling, so options B and D can be eliminated.
Rust forming on a metal gate is a chemical change, while an old sandwich rotting in a trashcan is also a chemical change.
Therefore, the correct answer is C. Both rust forming on a metal gate and an old sandwich rotting in a trashcan are chemical changes.
HELP!!!!!!!!!!!!!!! Please quick
Another organism in a marine ecosystem is a producer. Option C is correct.
In a marine ecosystem, the sun’s energy is trapped by producers to synthesize food through photosynthesis. The most abundant and widespread producer in a marine ecosystem is the phytoplankton. Apart from this seaweeds and seagrasses also form the producers in the marine ecosystem.
Consumers are heterotrophic and they depend on producers such as phytoplanktons for their energy needs. In a marine ecosystem, zooplanktons are herbivores. They are at the second level in the trophic level and they consume phytoplankton. Zooplankton are further consumed by carnivores like fish and jellyfish. After this comes the second-level and third-level carnivores which include large fish, squid, and octopus.
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