Answer:
The fish did not yet exist when the old layers of rocks were deposited. In fact, animals with hard parts did not evolve until about 600 million years ago, which is only about 13% of the 4.5 billion year age of the Earth. Multicellular animals without hard parts left tracks in older sediments, but had no fossilize-able body parts.
Explanation:
Answer:
B) The chromatids of each chromosome are separated.
<span>which some organisms have learned to harness energy from sources other than the sun, including geothermal energy. That heat energy allows them to form energetic molecules of their own.</span>
Answer:
option b is correct
Explanation:
aerobic respiration produce 38 ATP per glucose molecule while anaerobic respiration produce only 2 ATP per glucose molecule
There would be half the number of chromosomes in the gametes...so 4.
