Answer:
Mitochondria provides energy to the cell
I think it would be the first ones with lower o2 because fish dont breathe oxygene
Answer:
All animals went through 23 Carnegie stages
All the animals are vertebrates
Explanation:
The lines of all reached the end of 23.
Carnegie stages are used only for vertebrate embryos,
<span>a. an element is a substance that cannot be broken down</span>
Hello!
Carbon does not stay still in the Earth dynamic. When it is in the atmosphere, carbon is attached to oxygen, changing in dioxide. The carbon dioxide is used by the plants and return to the earth when it dies. The fossil fuels, then, are used by industry and vehicles, what send carbon to the atmosphere and restarts the process.
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