Where does Most of the carbon dioxide in the ocean come from? 1. the air

2. plants and a Animals

3. all the above

4. large factories and transportation

Why has two different alleles for the same trait?

Which claim correctly describes how genes can produce a phenotype? one gene is responsible for all traits. each trait is determined by a single gene. one gene can be responsible for many traits. each gene is responsible for exactly one trait.

What best explains why atp is regarded as a renewable resource within the cell