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Iteru [2.4K]
3 years ago
7

Natural selection is an important mechanism for evolution. If there is a change in the environment, which of the following state

ments is correct: *
a. Individual organisms will evolve in order to survive and reproduce.
b. Those organisms that have features that can take advantage of the environmental change will survive and reproduce.
c. Those organisms that are the strongest will survive and reproduce.
d. All of the above are correct.
Biology
1 answer:
Alex17521 [72]3 years ago
8 0

Answer:

I think the correct answer to your question is:B

Explanation:

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If a volcano were to erupt and release large amounts of ash into the air, how would this affect the climate on Earth? A. The ash
nataly862011 [7]

Answer:

A. The ash would increase the albedo and decrease the global temperature

Explanation:

The volcanoes can have a big impact on the global temperature. If the volcanic eruption is big enough, and the volcanoes manages to propel very large amount of ash in the atmosphere, the whole planet will feel the effect. The ash will make a layer in the atmosphere around the planet. This layer will increase the albedo of the atmosphere, as the ash will block big portion of the sunlight. That will result in much less sunlight reaching the surface of the Earth, thus in sharp decrease in the global temperatures.

3 0
3 years ago
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these f
cestrela7 [59]
1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.

2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.

4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.

I hope this can help you.
4 0
3 years ago
Choose the CORRECT statement concerning the cell membrane lipid molecules
VashaNatasha [74]

Answer:

The correct statement concerning the cell membrane lipid molecules is that "energy is not expended during diffusion" (Option d)

Explanation:

Biological membranes are formed by two lipidic layers arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, and their hydrophobic tails against each other. Membranes are fluid, which means that molecules that form it have the capability to move through it.  

Lipids can easily change places with other neighbor lipids by <u>lateral diffusion</u> in the same layer. This is passive diffusion, which means that it does not need energy to happen.

Lipids can also diffuse transversally to the other layer, but this kind of movement is not as easy as lateral diffusion.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.

Through this lipidic bilayer, there is also a passive transport of some particles from one side of the cell to the other which happens because of concentration differences.

6 0
3 years ago
Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.
Andru [333]

Answer:

Rosalind's x-ray showed that the ladders of nucleotides were inside a double helix.

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4 0
3 years ago
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Why can´t scientists come up with a single solution to protect all of these areas
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Explanation:

maybe I can help you with other question sorry

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