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sergij07 [2.7K]
4 years ago
7

What is speciation

Biology
1 answer:
Eduardwww [97]4 years ago
3 0

Answer:

B:The formation of two or more species from a common ancestor.

Explanation:

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What is cell division?
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Answer:

cell division is the process by which a living cell proliferates from one cell to two cells.

I hope this helps

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3 years ago
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Question 6 (2 points) Which is an example of artificial selection? a b Big Horn sheep fighting to defend females, who mostly bre
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the one with the race horse. brainliest?

Explanation:

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3 years ago
List the layers contained in the atmosphere and describe what is in each layer.
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Answer:

Exosphere -The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding with one another.

Thermosphere - The aurora (Northern Lights and Southern Lights) mostly occur in the thermosphere. The thermosphere is a layer of Earth's atmosphere. The thermosphere is directly above the mesosphere and below the exosphere. ... Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.

Mesosphere- Most meteors burn up in the mesosphere. A type of lightning called sprites sometimes appears in the mesosphere above thunderstorms. Strange, high-altitude clouds called noctilucent clouds sometimes form in this layer near the North and South Poles.

Stratosphere-The stratosphere is the second major atmospheric layer above the troposphere, extending in altitude from about 8 to 30 miles high. No weather occurs in the stratosphere. The statosphere contains over 15% of the total mass of the atmosphere, and is where the ozone layer is located.

Troposphere-The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.

i hope this helps, good luck :)

7 0
3 years ago
Environmental factors carn have various effects on ecosystems. In August 2005, Hurricane Katrina caused signifcant damage in sev
matrenka [14]
Assuming this is supposed to be a multiple choice question- I think the correct answer would be “early onset of spring change in marine ecosystems” because it looks like the question is asking what it wouldn’t affect, and I’m sure if the people had to leave, that animals would’ve all had to leave as well!
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3 years ago
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Color of Stars
dolphi86 [110]

Answer:

answer is D

Explanation:

hope this helps

7 0
3 years ago
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