I believe the answer is c
Gamete,
A Gamete is a cell that fuses with the other sex's Gamete to make a zygote, they are made via Meiosis, not Mitosis and it's practically impossible for them to divide after Meiosis
During translation to RNA, the nitrogen bases on the DNA molecule are translated to complementary RNA bases. Afterwards, these bases are again used to form amino acids.
Three bases make up a codon, which codes for a specific amino acid. If a base is changed, the codon will become changed. This will result in a different amino acid being produced in and the primary structure of the polypeptide will be altered.
Mutualism because both animals benefit. The Elephant gets relived from the parasites that are on it and the bird gets food.
Explanation:
abrasion, pressure release, thermal expansion and contraction and crystal growth.