Yes they did. It is generally known that amphibians breathe through their skin.
<span>Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid. </span>
I know DNA and stuff is super hard to learn I had to look at my old notes.
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
Answer:
D.
Explanation:
This amount of space in air that can hold water changes depending on the temperature and pressure.
Answer:
scavengers
Explanation:
these are the animals that feed on carrion, dead plants,or refuse.
