Answer:
<h2><u>
A. Having a nucleus</u></h2>
Explanation:
Many organisms have nuclei, but certain types of one-celled prokaryotes and bacteria do not have one.
The precambrian era makes up about 90% of the earths history, but there was little to no living organisms at the time other than microscopic ones. The first eukaryotes were found in the cambrian period after the precambrian period, not only that but at the end of the precambrian era in the Proterozoic era there was a mass extinction of about 70-80% of all living organisms
Mainly carbohydrates our body stored energy as glycogen.
Answer:
Answer is C
Explanation:
The most similar is hippo and gray whale because they only differ 5 amino acid. The most different is gray whale and elephant because it is 30 amino acid different.
