For an animal to be extinct none more of that specific species must exist on Earth. This makes it impossible for that species to come back to life.
The lowest and thickest layer of the atmosphere is troposphere
it dates back to the Precambrian era
Answer: A) They are the site of protein synthesis.
Explanation:
Ribosomes are small round organelles attached to the endoplasmic reticulum in cells, and serve as site of protein synthesis. This is possible because the transfer RNA assembles amino acids to form polypeptide chains right in the ribosomes.
Thus, ribosomes are site of protein synthesis
Humans are creating antibiotic resistant bacteria through a process if <u>Recombinant</u><u> </u><u>DNA</u>