Answer:
The diversity of life despite the similarity of DNA molecules in every living organism arises from the sequences of base pairs in DNA that are different.
Explanation:
Connecting body systems!
The Connecting body systems are listed below:
Circulatory system
Respiratory system
Nervous system
Muscular system
Skeletal system
Digestive system
Endocrine (hormones) system
Lymphatic, or immune system system
Reproductive system
Integumentary (skin, hair) system
What is the Nervous system?The nervous system is described as the highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body.
The main function of the nervous system is to help all the parts of the body to communicate with each other.
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People who are forced to leave their homelands because of change related to the environment are called
global warming migrants.
generation global warming.
climate forcers.
climate refugees.
Answer:
D. Climate Refugees
Explanation:
Quizlet said so and quizlet doesnt lie
Use the image to answer questions 34 through 36. The Atacama Desert in Chile is one of the driest places on Earth. The Atacama Desert has an average precipitation of less than 0.1 millimeter (mm) per year. On the other side of the Andes Mountains, Salta, Argentina, has an average precipitation of 700 mm per year.
What characteristic is most responsible for the differences that occur in the weather in this area?
F. the height of the Andes Mountains
G. the wave action of the Pacific Ocean
H. the dryness of the Atacama Desert
I. the trade winds from the Atlantic Ocean
The characteristic that is most responsible for the differences in weather between the Atacama Desert and Salta, Argentina is H) the dryness of the Atacama Desert.
The Atacama Desert is located on the western side of the Andes Mountains, which blocks moist air from the Pacific Ocean, leading to very little precipitation in the area. Salta, on the other hand, is located on the eastern side of the Andes, where moist air from the Atlantic Ocean is able to reach the area and cause precipitation.
it is the dryness of the Atacama Desert that is the main factor responsible for the lack of precipitation in the area, rather than any of the other options listed in the question.
Therefore, the correct option is H. the dryness of the Atacama Desert.
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What changes in weather have we seen with rising temperatures?
fewer drought events
more precipitation in coastal areas
less extreme storms
more cold records set in temperature than hot ones
Answer: more precipitation in coastal areas
Explanation:
Droughts are becoming longer and more extreme around the world. Tropical storms becoming more severe due to warmer ocean water temperatures.
Maria is meeting with a group of individuals whose treatments have left their cancer in remission for at least two years. She asks them about how their lives have changed and what information they learned before remission that has most impacted their lives today. What is the best description of Maria's actions?
A. testing a hypothesis
B. testing a theory
C. conducting a focus group
D. oversering patients
Which animal species spends most of the time sleeping
A) carnivores
B) herbivores
C) marsupials
D) sleep times are approximately the same for all animals
Answer:herbivores
Explanation
The brown tree snake is a native species in Australia. In the twentieth century, brown tree snakes were accidentally transported by ship from Australia to Guam. These snakes prey on birds, lizards, bats, and rodents such as mice. The population of brown tree snakes in Guam grew rapidly because these snakes had few predators and little competition for food. Eventually, the snakes destroyed entire populations of small mammals and birds. The biodiversity of Guam was harmed. A scientist wants to improve the biodiversity of Guam by controlling the brown tree snake population. Which of the following should be included in the scientist's solution? A new species that can breed with brown tree snakes should be introduced into the ecosystem. Poison that is toxic to brown tree snakes should be placed with dead mice, and the mice should be placed in areas with large numbers of brown tree snakes. People living in Guam should move to new locations away from brown tree snakes. All ships coming from Australia should be inspected to make sure there are no brown tree snakes on board.
Answer:
D
Explanation:
D) All ships coming from Australia should be inspected to make sure there are no brown tree snakes on board.
The most effective solution for controlling the brown tree snake population in Guam would be to prevent their introduction and spread in the first place. As the brown tree snakes were accidentally introduced to Guam through transportation, the scientist's solution should focus on preventing further introduction of these snakes into Guam.
Therefore, inspecting all ships coming from Australia to ensure that they are not carrying brown tree snakes on board would be the most appropriate solution. This would prevent any additional brown tree snakes from entering the ecosystem and allow for the restoration of the biodiversity of Guam.
Option A is not appropriate as introducing a new species could cause unforeseen ecological consequences and harm the native species further.
Option B is not effective as it could harm other animals in the ecosystem.
Option C is not a practical solution as moving people from Guam would not be feasible, and it does not address the root cause of the problem, which is the introduction of the brown tree snake.
These diagrams represent the three types of tectonic plate
boundaries.
At which type of tectonic plate boundary is a volcano least likely to occur?
O AA
© B. B
О c. c
D. A, B, and C are equally unlikely.
The likelihood of a volcano occurring is lowest at the transform boundary.
What are the 3 kinds of structural plate limit lines?Plate tectonic boundaries come in three varieties: plate boundaries that are transform, divergent, and convergent. The three primary types of plate boundaries are depicted in this image: transform, divergent, and convergent. Picture politeness of the U.S. Topographical Overview.
What kind of plate limit causes volcanoes?At a divergent plate boundary, plates break apart, resulting in shallow earthquakes and volcanic activity. One plate dives or "subducts" beneath the other at a convergent plate boundary, resulting in a variety of earthquakes and a line of volcanoes on the dominant plate.
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Your Family May Once Have Been A Different Color
1. Read article and mark the text. Be sure to:
a. Highlight/underline important ideas
b. Circle important people
c. Write in your own words in the margin
2. Summarize the main idea of the article and discuss TWO ways that having dark skin color is more
adaptive than lighter skin color. Use evidence from the article by naming the paragraph number
Explain the difference between radial and bilateral symmetry in animals, and give an example of each type
Answer:
Radial symmetry is a type of symmetry found in animals where the body parts are arranged in a circular or radial pattern around a central axis. This means that any plane passing through the center of the animal's body will divide it into two equal halves. Radially symmetrical animals are typically found in aquatic environments, where they can move in any direction to capture food or avoid predators. Examples of radially symmetrical animals include jellyfish, starfish, and sea urchins.
Bilateral symmetry is a type of symmetry found in animals where the body is divided into two equal halves along a single plane. This means that there is only one way to divide the animal's body into two equal halves. Bilaterally symmetrical animals are typically found in terrestrial environments, where they move in a forward direction to capture food or avoid predators. This type of symmetry is also associated with the development of a head region, where sensory organs and a mouth are located. Examples of bilaterally symmetrical animals include insects, fish, mammals, and humans.
Efforts to minimize the impact of climate change are called
adaptation.
mitigation.
stabilization.
coordination.
Mitigation are the efforts to minimize the impact of climate change. So, the correct option is B.
Give a brief account on Climate change mitigation.Climate change mitigation is about reducing greenhouse gas emissions that warm the planet. These strategies include retrofitting buildings to make them more energy efficient. Introduction of renewable energy sources such as solar, wind and small hydro. Help cities develop more sustainable transportation options such as express buses, electric vehicles and biofuels. Promote more sustainable use of land and forests.
About 1.4 billion people worldwide rely on conventional fuels such as coal and wood for their basic energy needs. It can also cause millions of people, especially women and children, to die prematurely. By 2035, global energy demand is expected to grow by more than 50%, and even faster in developing countries. All of these new consumers want clean energy that doesn't harm them or the environment.
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Which of the following is not a characteristic of animals?
A. Cell with cell walls
B. Multicellular organisms
C. Are consumers
D. Break down food
Answer:
A. Cell with cell walls is not a characteristic of animals.
What type of system should your pack use-an open system or a closed system? Explain.
The type of system your pack should use, either an open system or a closed system, depends on the type of activity you plan to engage in, the climate, and the environment you will be operating in. An open system is characterized by adequate ventilation, allowing air to move freely in and out of the system. Open systems are typically more suitable for warm or hot climates, as they allow for air flow to help regulate body temperature and prevent overheating. They are also generally easier to maintain and lighter in weight compared to closed systems.
On the other hand, closed systems are typically sealed and do not allow air to move in and out. They are better suited for colder environments and activities, as they provide insulation and prevent cold air from entering the system. However, they can be heavy and require more maintenance than open systems. Ultimately, the decision between an open system and a closed system will depend on the specific needs and requirements of the activity and the environment in which it will take place.
Describe the historical pattern of growth of the worldwide human population since our origin.
The human population is expanding exponentially on a global scale. By advancing agriculture, medicine, communication, and migration, humans have enhanced the world's carrying capacity. We can forecast population increase by looking at the age structure of a population.
How did people's numbers increase over the majority of history?The lower death rate brought on by improvements in public health and sanitation over the past 200 years has been the underlying reason behind the acceleration of human development. In affluent countries, access to clean drinking water and adequate sewage disposal has significantly benefited health.
This rapid expansion has been primarily fueled by a rise in the proportion of individuals who make it to reproductive age, the progressive extension of the human lifespan, growing urbanisation, and faster migration. Growth has been followed by significant shifts in fertility rates.
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Why is it said that natural selection acts on phenotypes rather than on the genetic material of organisms?
Answer:
It's because an organism's phenotype, or physical traits, are what truly decide whether it can reproduce and pass on its genotype to the following generation.
Because the phenotype of an organism represents the alleles that are actually expressed in that organism, natural selection affects that phenotype.
Explanation:
Suppose in humans an autosomal gene, , causes dwarfism in one homozygous state (++) , normal height in the heterozygous state (+−) , and is embryonic lethal in the other homozygous state (−−) . A separate gene, , found on another chromsoome causes albinism, an autosomal recessive disorder. Albino individuals have the −− genotype. Rick and Lori, who are both heterozygous for both genes (+−+−) , just had a son, Carl. What is the probability that Carl is a dwarf with albinism?
Each chromosome in the undivided state is homozygous for any recessive allele, which equals 1 (3/4)3. = 37/64.
What is the likelihood that you are an albino carrier?This means that in order to be born with albinism, a kid must inherit two copies of the gene—one from each parent—from both parents. If both parents have the gene, their child has an odds of one in four of having colorblindness and a one in two probability of having the gene.
What is the likelihood that both kids are albinos?Everything depends on whether both you and your wife are albino. If neither of you have children, there is a one in four probability that one of them will be albino.
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Highlight the economic importance of parasites to agriculture in the tropics
b. Enumerate the impacts of parasitic infection on education
Parasites can have positive or negative impacts on agriculture in the tropics. Parasitic infections can reduce school attendance, impair cognitive ability, lower academic performance, and lead to social stigmatization, particularly in developing countries.
What effects do parasites have on agriculture?Farmers and ranchers that have parasite-infested herds incur greater expenditures to care for sick animals and lose money due to poor productivity. Not only do animals suffer economic losses when they pass away, but also when they are unable to do their normal jobs or when the meat, milk, wool, skins, or eggs they provide are of poor quality.
What do agricultural parasites do?Internal parasites including worms, flukes, and protozoa, as well as external parasites like flies, ticks, lice, and mites, infest cattle, sheep, and goats. Livestock parasites may potentially be zoonoses, which means they may spread to people.
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Identify the types of point mutations depicted.
Glycine (G G C) is transformed to Glycine (G G A).
Glycine Glycine
missense mutation
nonsense mutation
silent mutation
Lysine (A A G) is transformed to stop codon (T A G).
Lysine Stop
missense mutation
nonsense mutation
silent mutation
Answer:
The first one is silent mutation, The second is missense mutation.
Explanation:
silent mutation is when you change the last point of dna in the line. Missense mutation is when you change the first.
The key determinant of viral evolution rate is the (9)______________________________ , which is lower in SARS-CoV-2 and its relatives compared to other RNA viruses like Hepatitis C Virus and HIV. However, SARS-CoV-2 strains have a very high (10)______________________ , suggesting strong positive selection rather than neutral evolution. In addition to point mutations, (11)____________________________ can generate functionally relevant diversity. Further, host-mediated (12)__________________________ can introduce directed mutations. Most mutations will be quickly lost due to chance or (13)______________________________ against deleterious variants. Ultimately, the (14)______________________________ , which measures the accumulation of variation over time rather than simply the generation of new mutations, determines the rate of evolution. Although mutations occurring during the course of infection can generate multiple variants within individual hosts, scientists studying viral evolution at the population level focus on the (15)______________________________ for each host, which consists of the most common variant at each sequence position in the genome. Another source of potentially adaptive variation is (16)_____________________________ , which can occur when an individual host is simultaneously infected with two genetically distinct viral strains.
Word Bank: consensus sequence / dN/dS ratio / genome editing / insertions & deletions / mutation rate / purifying selection / recombination / substitution rate
Recombination, which may happen when a single host is simultaneously infected with two genetically different virus strains, is another source of potentially adaptive diversity.
What is evolution?The process of evolution is how different kinds of creatures evolve over time. It often involves a mix of genetic variety, natural selection, and other elements including mutation, genetic drift, and gene flow. The fundamental tenet of evolution is that populations of organisms accumulate random genetic changes over extended periods of time, which result in the emergence of novel traits and features.
The key determinant of viral evolution rate is the (9) mutation rate, which is lower in SARS-CoV-2 and its relatives compared to other RNA viruses like Hepatitis C Virus and HIV. However, SARS-CoV-2 strains have a very high (10) dN/dS ratio, suggesting strong positive selection rather than neutral evolution. In addition to point mutations, (11) insertions & deletions can generate functionally relevant diversity. Further, host-mediated (12) genome editing can introduce directed mutations. Most mutations will be quickly lost due to chance or (13) purifying selection against deleterious variants. Ultimately, the (14) substitution rate, which measures the accumulation of variation over time rather than simply the generation of new mutations, determines the rate of evolution. Although mutations occurring during the course of infection can generate multiple variants within individual hosts, scientists studying viral evolution at the population level focus on the (15) consensus sequence for each host, which consists of the most common variant at each sequence position in the genome. Another source of potentially adaptive variation is (16) recombination, which can occur when an individual host is simultaneously infected with two genetically distinct viral strains.
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what is histochemistry in cytological specialties ?
Answer:
The Enzyme-histochemistry method is used to study the metabolic changes in the tissue of diseased patients; in the diagnostic of Hirschsprung disease; Biopsy analysis of muscle; and for the research in toxicology.
Explanation:
Which of the following actions is an example of a mitigation strategy with regard to climate change?
Improving disease surveillance to look for the spread of tropical diseases beyond their traditional range.
Shoring up coastlines that are subject to erosion and flooding.
Halting deforestation in tropical areas and planting trees in areas that have already been cleared.
Changing the crops that are planted in a given area to better reflect the changes being experienced in water availability.
Halting deforestation in tropical areas and planting trees in areas which have already been cleared is an example of a mitigation strategy with regard to climate change. So, the correct option is C.
Give a brief account on mitigation.Mitigation is said to be the reduction of something harmful, or the reduction of its harmful effects. It may refer to actions taken to mitigate the harmful effects of a potential residual hazard or to address a harmful incident that has already occurred. This is known to be a stage or component of emergency management and risk management.
Climate protection refers to efforts to reduce or prevent greenhouse gas emissions. Mitigation can mean using new technologies and renewable energy, making older appliances more energy efficient, or changing management practices or consumer behavior.
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Process where homologous chromosomes exchange genetic material during meiosis. What’s it called?
Answer:
The process of crossing over during Meiosis 1 happens in the Pachytene stage. The process itself is called Recombination and it occurs with the help of the enzyme Recombinase, the sites of crossing over are called Recombinant modules.
Explanation:
Which of the following is evidence that suggests climate is changing?
All areas of the planet are receiving more precipitation.
Sea level is rising.
Global temperatures have decreased about 1°C in the Arctic and Antarctic.
Glacial ice is getting thicker in Greenland.
Answer:
Sea level is rising.
Explanation:
Climate change causes warm temperatures which causes ice, glaciers, polar ice caps to melt. As the glaciers and other frozen objects melt, they increase sea level
Describe the process of pollination and fertilization in flowering plants?
Please
Answer:
Pollination is the transfer of pollen from the male part of the flower, known as the anther, to the female part of the flower, known as the stigma. This can occur through a variety of methods, including wind, water, or through the action of animals. Once the pollen lands on the stigma, it begins to grow a tube down through the style of the flower towards the ovary.
Fertilization occurs when the pollen tube reaches the ovary and fertilizes the egg cell inside the ovule. The fertilized egg cell then develops into a seed, while the ovary develops into a fruit. The process of fertilization requires the transfer of genetic information from the male parent to the female parent, which occurs when the sperm cell from the pollen combines with the egg cell in the ovule.
After fertilization, the ovule develops into a seed, which contains the genetic material necessary for the growth and development of a new plant. The fruit, which develops from the ovary, provides protection for the seeds and helps to disperse them away from the parent plant. This process of pollination and fertilization is essential for the reproduction of flowering plants, and allows for genetic diversity and evolution within plant populations.
Can someone help me with this really quick? All you have to do is watch this quick video which is the picture I attached just look it up and make a food web based on your observations of the video. Make sure you add arrows, labels, etc.
The Army of Sea Urchins video described sea urchins are fascinating and important creatures that play a vital role in marine ecosystems.
What are sea urchins?Sea urchins are spiny marine animals that belong to the phylum Echinodermata, which also includes starfish, sea cucumbers, and sand dollars. They are found in oceans all over the world and play important ecological roles in marine ecosystems.
The Army of Sea Urchins video on BBC may have explored some of the following topics:
The feeding habits of sea urchins: Sea urchins are herbivorous and graze on algae and other plant material in the ocean. They use their sharp spines and specialized mouthparts to scrape and grind food from hard surfaces like rocks and coral.The ecological impact of sea urchins: In some marine ecosystems, sea urchins can become overpopulated and cause significant damage to kelp forests and other habitats. By feeding on the plants that provide shelter and food for other organisms, sea urchins can disrupt entire food webs and alter the balance of the ecosystem.Learn more about sea urchins at: https://brainly.com/question/23213828
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two virginia cities that drain to the north Carolina sounds
Answer: Norfolk and Virginia Beach.
Explanation: Two Virginia cities that drain to the North Carolina sounds are Norfolk and Virginia Beach. Both cities are located in the southeastern region of Virginia, and their drainage systems ultimately flow into the Albemarle and Pamlico Sounds, which are located in northeastern North Carolina.
21 The students view two cells, a skin cell and a
muscle cell. In which cell are the students MOST
LIKELY to view more mitochondria?
A. The students will view more mitochondria in the
muscle cell because this cell type requires more
energy formed during ATP synthesis.
B. The students will view more mitochondria in the
muscle cell because this cell type requires the
breakdown of unnecessary macromolecules.
C. The students will view more mitochondria in the
skin cell because this cell type requires harmful
substances to be detoxified before entering the
body.
D. The students will view more mitochondria in the
skin cell because this cell type requires water
levels to be maintained by moving molecules in
and out.
A is the right response. The muscle cell has more mitochondria visible to the students because it needs more energy produced during ATP production.
Why are mitochondria more abundant in skin cells?The ability to synthesise more ATP, the cellular energy, would be necessary for cells that demand more energy to function. They would need additional mitochondria if they wanted to produce more ATP.
Why are mitochondria so prevalent in skin cells?The skin depends heavily on mitochondria. Although it might not need as much energy as other organs, such skeletal muscle, it is nevertheless crucial for functions like cell signalling, wound healing, pigmentation, vascular homeostasis, and hair development.
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two virginia cities that drain into north Carolina sounds using the map
According to the map you gave, Norfolk and Virginia Beach are two Virginia cities that drain into the North Carolina Sounds.
What rivers are part of the watershed for North Carolina's sounds?The sound is 450 square miles in size, 60 miles long, and up to 15 miles across. It contains water from numerous tiny streams as well as the Roanoke, Chowan, and Pasquotank rivers.
In North Carolina, how many sounds are there?The Outer Banks are surrounded by five seas. They are the Currituck Sound, Albemarle Sound, Croatan Sound, Roanoke Sound, and Pamlico Sound, in that order from north to south. When one sound ends and the next one begins, there is no distinct boundary.
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i need help on this question
Answer:
A D
Explanation:
12. Which population is most likely to survive a sudden environmental change caused by an extreme
drought: A large, genetically diverse population or a small, genetically similar population? Why?
The small genetically similar population
Answer:
Large diverse
Explanation:
change caused by an extreme drought because genetic diversity allows for a greater range of traits and adaptations to help cope with changing conditions
