Answer:
Plural form of ovary is ovaries.
The abbreviation that represents as desired is ad lib
Nucleotides are being named or classified by their bases. They are adenine, cytosine, guanine, thymine and uracil. Nucleotides are organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Age cohort is the group of people born during the same time. Due to their similar time of birth, they pass the course of life together. Therefore, the correct answer to your question is A. Example of the age cohort is the students of particular class, who are of same age group ad have similar expressions and concerns.
The answer would be evolution, the creature must evolve and adapt to survive.