If the root micro- means "small," which of these words means "a small, representative world"?

a. microcopy
b. microcosm
c. microhabitat

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca