Answer:
Oxygen.
Explanation:
Aerobic respiration occurs in the presence of oxygen.
Causes errors in Dna replication
Answer:
in the cell nucleus
Explanation:
Most DNA is located in the cell nucleus where it is called a nuclear DNA.
Answer:
The four nitrogen bases that are found in deoxyribonucleic acid (DNA) are adenine, cytosine, guanine, and thymine.
Thymine and cytosine comprise of one -carbon nitrogen ring and also called pyrimidines, while two carbon nitrogen ring is present in adenine and guanine and also called purines. Purines has larger in size because of extra carbon nitrogen ring.
Answer:
Coelenterates are the first invertebrates to develop a true nervous system.