Long chains of amino acids used for building, repair, and maintenance.
Answer:
ETS is responsible for more lung cancer deaths than heart disease deaths annually
Isn't it none of the above? don't cells use mitosis?
Fossils are physical evidence of preexisting organisms, either plant or animal. ... Fossils of any kind are useful in "reading the rock record," meaning they help us decipher the history of the earth. They can help us determine the geologic age and environment (the paleoenvironment) in which they were deposited.
