Answer:
it means that student is running 8meters per second
Answer:
it means that the student runs 10 miles per second
Explanation:
Explain how this experiment disproves the theory of spontaneous generation.
Answer:
The theory of spontaneous generation suggested that the living organisms can come from inanimate objects, however, it is an obsolete theory that is disproved by many experiments. The very first experiment that disapproved it was the experiment by Francesco Redi in 1668.
He demonstrated that maggots come from the eggs of flies instead of rotting meat. He placed raw meat inside of every jar. Half the jars he left open and the other half, he covered with mesh. In open jars, he found maggots after some time but covered jars have no maggots. That proved that the maggots come from eggs of flies rather than rotten meat.
The presence of flies on the meat is responsible for the production of maggots in meat.
This experiment disproves the theory of spontaneous generation because maggots are produced from the flies not the rotten meat. According to spontaneous generation, living organisms are formed or develop from nonliving matter.
So by performing this experiment we can see that maggots are formed when the flies feed on the rotten meat otherwise no maggots are present if the flies are not present there so that's why we can conclude that this experiment rejects the theory of spontaneous generation.
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Why does mining have such an impact on the environment? A. Mining only affects the living parts of the environment. B. Because minerals are within the Earth's surface, extraction causes destruction. C. Mining requires the absolute destruction of an area to be cost-effective. D. Areas that are mined can never again sustain plant life. Please select the best answer from the choices provided A B C D
Answer:
B.
Explanation:
The primary environmental effects of mining are on the habitats for wildlife and fisheries, the water cycle, regional temperatures and rainfall patterns, sedimentation, forest loss, and ecological disruption. Thus, option B is correct.
What is the impact of mining on the environment?The effects of mining on the environment include soil, groundwater, and surface water contamination from chemicals produced during mining operations, erosion, sinkhole development, biodiversity loss, and sinkholes.
Mineral extraction from the environment frequently results in imbalances that are harmful to the environment.
Loss of vegetation cover, widespread water body degradation, biodiversity loss, altered land use, increasing social vices and conflicts, high cost of living, and air pollution are some of the negative effects of mining.
Therefore, Because minerals are within the Earth's surface, extraction causes destruction.
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One function of the poly-A tail on eukaryotic MRNA sequences is to help the MRNA be transported from the nucleus to the cytoplasm. Prokaryotic mRNA also has a poly-A tail. Choose the best explanation of the prokaryotic poly-A tail.
Answer:
In eukaryotes, it is well known that polyadenylation is required to produce the mature messenger RNA (mRNA) molecule and it provides stability to the mRNA during translation initiation. In prokaryotic organisms, polyadenylation is required for the degradation of the mRNA in a mechanism that involves three steps: endonucleolytic cleavage, polyadenylation and exonucleolytic degradation. Moreover, it is also important to note that no evidence of polyadenylation has bee reported in some prokaryotes including the halophilic bacteria Haloferax volcanic (Slomovic et al. 2005).
Citation:
Slomovic, S., Laufer, D., Geiger, D., & Schuster, G. (2005). Polyadenylation and degradation of human mitochondrial RNA: the prokaryotic past leaves its mark. Molecular and cellular biology, 25(15), 6427-6435.
Are bats blind?Non scientific or scientific question?
Answer:
No, bats are not blind. Bats have small eyes with very sensitive vision, which helps them see in conditions we might consider pitch black. They don't have the sharp and colorful vision humans have, but they don't need that.
Explanation:
In the water cycle, matter moves towards the pull of gravity during
- infiltration and evaporation
- transformation and infiltration
- evaporation and transpiration
* CORRECT ANSWER:*
- D: evaporation and transpiration
Answer:
evaporation and transpiration
Explanation:
The water eventually is released to the atmosphere as vapor via the plant's stomata — tiny, closeable, pore-like structures on the surfaces of leaves. Overall, this uptake of water at the roots, transport of water through plant tissues, and release of vapor by leaves is known as transpiration
how can people be beneficial from rearing honey bees?
Answer:
people can be beneficial from raising honey bees by promoting the usage of pollination. By pollinating plants are able to spread the growth of plants and help them bloom such as flowers and foods.
Explanation:
where has the population reached the carrying capacity in the Graph shown above? (need help quick!)
A. point C
B. point B
C. point A
D. point D
Answer:
The correct answer is option D. point D.
Explanation:
Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively. For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.
In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.
Thus, the correct answer is option D. point D.
Answer:
D point D
Explanation:
Hornworts have only one _______ in each of their cells.
A. membrane
B. ribosome
C. chloroplast
Answer:
C
Explanation:
Hornworts has only one chloroplast
Which molecule would be the most affected by limited nitrogen?
myofibrillar proteins in muscle
glucose molecules in starch
fat molecules surrounding organs
cellulose molecules in plant cell walls
Myofibrillar proteins in muscle would be the most affected by limited nitrogen.
What are proteins?Proteins are essential biomolecules composed of linear sequences of building blocks called amino acids.
The amino acids are composed of nitrogen (N), carbon (C), hydrogen (H) and oxygen (O), and often also sulfur (S).
Nitrogen is, therefore, a fundamental component of all amino acids, which form proteins such as enzymes, peptide hormones, etc.
In conclusion, myofibrillar proteins in muscle would be the most affected by limited nitrogen.
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Which is one way that minerals crytallize from materials dissolved in water
From the air
From solutions that evaporate
From hot water solutions when water boils
From the soil
Answer:
From solutions that evaporate
Explanation:
Minerals can form in different ways. According to the question, minerals crystallize from a material dissolved in water when the solution evaporates. When a material dissolves in water, it forms a solution i.e. water + dissolved material.
The element constituents of the solution can aggregate to form a solid mineral, which will be left to crystallize when the solution undergoes evaporation i.e. liquid changes to gas. A very good example is when salt dissolves in water to form a salt water solution. When the water of this solution evaporates, salt crystals are left, which can crystallize to form minerals.
Answer:
From solutions that evaporate
Explanation:
The soft and green stems found in flowers are called:
Answer:
sepals aka calyx
Explanation:
sapelis lowest part on flowers which covers the flower and from which pedicel is produced.
What is produced during the photosynthesis process?
A. Chloroplasts
B. Carbon Dioxide
C. Sugar
Answer:
Sugar
Explanation:
Photosynthesis is a process that certain organisms undergo. Plants, algae, and certain bacteria use this process to produce their own food. These organisms are called producers or autotrophs.
The equation for photosynthesis is:
carbon dioxide + water + light energy —-> glucose + oxygen
The plants turn carbon dioxide, water, and light energy from the sun into glucose and oxygen. The glucose, or sugar, becomes the food for the plant. The oxygen is the waste product.
The question asks us what is produced during photosynthesis.
Chloroplasts are not produced, but they are where photosynthesis takes place. Carbon dioxide is not produced, but it is used in the process. The correct answer is sugar. Sugar is produced, and it is the food for the organism.
Why are human populations not limited by the carrying capacity of their ecosystems?
Answer:
humans use their knowledge to locate resources.
Explanation:
The carrying capacity can be defined as the maximum number of individuals in a population of a species that an ecosystem or region can support on the basis of availability of water, food, habitat and other needs necessary for survival. Sometimes, the population of the species increases exponentially exceeding the carrying capacity of an ecosystem when the resources available are surplus.
The human populations are not limited by the carrying capacity of their ecosystem this is because of the fact human beings possess special intellectual and thinking abilities which make them capable of availing themselves resources. They posses knowledge which allows them to search, and find resources even from the earth extreme locations not suitable for survival.
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Bacteria are organisms that need to be viewed with a microscope. Darla designed a model of bacteria using household
items such as macaroni and string.
Which best describes the advantage of her model?
O She was able to represent something small in a larger way.
O She was able to represent something large in a smaller way.
O She made the model so she could then use the microscope.
O She made the model so she could notice patterns.
Answer: A . she was able to represent something small in a larger way .
Seeds are the male gametes in plants. true or false
Answer:
Seeds are not gametes.
Explanation:
Microsporophyll is a male gamete.
Macrosporophyll is a female gamete.
Answer:
False
Explanation:
Pollen is the male gamete in plants
Explain why the potential chemical energy included in the structure of the monomers that make up the nutrients we eat is not lost during digestion.
Once arriving at the ribosome, which process will begin next?
Answer:
Translation of genetic code for protein formation
Explanation:
Answer: Translation
Explanation: trust me I got it correct
Does compost cause tomato plants to grow faster and taller than artificial fertilizer?
Answer:
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that's rich in nutrients. ... This fertiliser caused his plants to grow faster and taller than they grew in unfertilised soil, artificial fertiliser provides lacking minerals which also speeds up growth, it depends on the richness of minerals in the compost and the quality of artificial fertiliser
Which part of the neuron below is indicated by the arrow, and what is its function? The long section of a neuron that includes structures that wrap around the neuron are indicated by the arrow. The axon carries information through electrical impulses away from the cell body to the axon terminals. The axon contains the nucleus that controls all the activities of the cell. The dendrites regulate the substances that go in and out of the cell. The dendrites carry the electrical impulses from the signal receivers to the cell body.
Answer:
The answer is D. I am telling you this because i got it correct on the quiz, 90%. Not to brag.
Explanation:
Which part of the neuron below is indicated by the arrow, and what is its function?
The dendrites carry the electrical impulses from the signal receivers to the cell body.
Now mark me brainliest please :) im trying to level up.
A neuron is the structural and functional unit of the nervous system.
What wraps around the neuron?Schwann cells form the myelin sheath around the neurons of the peripheral nervous system while oligodendrocytes in the central nervous system.
What is its function?It creates an insulation layer and helps in the quick transmission of impulses.
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1 pc
If
you are given a quadrat of 1.5 square meters and you count the
dandelions in 10 quadrats and find an average of 2 dandelions per quadrat
area. Use this information to estimate the population density of dandelions
per square meter in a 4500 square meter open field. (make your answer
just the number, round to the nearest 2 decimal places) *
Your answer
In a stable population of rabbits and wolves a government agency enacts a 1 point
Answer:
1.33 dandelions per square meters
Explanation:
The correct answer would be 1.33 dandelions per square meter of land.
Size of quadrat = 1.5 square meters
Average number of dandelions per quadrat = 2
Total study area = 4500 square meter
Population density = number of organisms per unit area
There were 2 dandelions per 1.5 square meters
How many would be per square meter?
= 2 x 1/1.5 = 1.3333 dandelion per square meters
To 2 decimal places = 1.33 per square meters
which components of dna determine the genetic code?
Answer:
Explanation:
Genetic code. Genetic code, the sequence of nucleotides in deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) that determines the amino acid sequence of proteins. Though the linear sequence of nucleotides in DNA contains the information for protein sequences, proteins are not made directly from DNA.
The Serengeti region of Africa contains a population of cheetahs and a population of lions. Studies have shown that the cheetah population has very low genetic diversity, while the genetic diversity of the lion population is quite high. The cheetah population is also much smaller than the lion population. Both populations are vulnerable to infection with a particular virus that can be fatal in both species. What is the most likely outcome if both populations are infected with this virus?
A.
The cheetah population is more likely to survive because there are fewer individuals for the virus to attack.
B.
The lion population is more likely to survive because larger populations are immune to viruses.
C.
The cheetah population is more likely to survive because lower genetic diversity increases immunity to viruses.
D.
The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Answer:
D. The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Explanation:
Since lions have greater genetic diversity it is likely that there's one or two lions that have a trait to resist or kill the virus thus won't be infected, whereas, since cheetah's have low genetic diversity and low population size it is likely that they have little to no chance to surviving this virus attack since the genetic makeup is similar among the members of cheetah species.
Answer:
d
Explanation:
plato
Polar bears feed on seals. So, polar bears and seals share a . Climate change has caused ice caps to melt in colder regions where polar bears live. This change has caused them to hunt less. This situation will lead to .
Polar bears and seals are animals that share a prey-predator relationship, whereas climate change causes less biomass at the quaternary level.
What is the prey-predator relationship?The prey-predator relationship is s type of ecological association where one species is hunted (the prey) by another species.
Moreover, climate change is well known to produce global warming and melting ice on the Earth's poles.
In conclusion, polar bears and seals are animals that share a prey-predator relationship, whereas climate change causes less biomass at the quaternary level.
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which scientist determined that electrons had predicted zones orbiting the nucleus?
Answer:
John Dalton
so i hope this is useful
Answer:
Schrödinger
Explanation:
Believed electrons do not stay in a certain orbit, but can have a predicted zone around the nucleus (electron cloud)
Which type of mutation does not change the animo acids produced
Answer:
if a point mutation does not change the amino acid, it's called a SILENT mutation.
Explanation:
what is the point called where the retina is connected to the eye?
Answer:
Nervo óptico
Explanation:
responsável por dar ao ser humano a capacidade de ver e processar informações visuais rapidamente quando totalmente desenvolvido
Answer:
Optical nerve.
Explanation:
The point called where the retina is connected to the eye is called the Optical Nerve.
What are two elements that algae thrive on ?
Answer:
Algae are single celled aquatic plants that need sunlight, food and carbon dioxide in order to thrive. So, the two elements that algae thrives on are nutrients and warm temperatures.
Explanation:
give examples of how hypothesis lead to new experimental methods
Answer:
Thomas Hunt Morgan continues on with the genetic research which is of Gregor Mendel but according to research Morgan used fruit flies.
Explanation:
Hypothesis is termed as an explanation which is being proposed for a phenomenon. There is a difference which is between scientific theory and scientific hypothesis.
What do scientists believe provides evidence for the Big Bang theory?
A. The gradual spreading of the ocean floors along plate boundaries
B. the presence of the main asteroid belt
C. The core accretion theory of planet formation
D. The presence of cosmic microwave background radiation?
The presence of cosmic microwave background radiation is evidence for the Big Bang theory given by scientists. The correct option is D.
What is Big bang theory?The Big Bang theory exemplifies how the universe came into existence from a high density and temperature starting point.
It is the dominant cosmological model that explains the evolution of the observable universe from its earliest known periods to its subsequent large-scale form.
According to scientists, the universe should be filled with radiation that is literally the remnant heat from the Big Bang, which is known as the "cosmic microwave background," or CMB.
Thus, the correct option is D.
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what are the two important roles of gut movement?
Answer:
These movements enable food to progress along the digestive tract while, at the same time, ensuring the absorption of the important nutrients. Techniques of measuring these movements of the gut enable us to recognize the normal patterns of contraction in each of the regions
Explanation:
