Answer:
Mitochondrial DNA is circular, so it doesn't shorten when it replicates unlike the rest.
Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
Answer:
The energy comes from electrons produced by oxidation of biological molecules.
Explanation: In photosynthesis, the energy comes from the light of the sun.
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Darwin called the ability of an organism to survive and reproduce in its environment fitness.
Some organisms were fit to do all of these things, whereas others were not.
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