During most of the earth's history, global sea levels have been hn they are today?
a)lower
b)higher
c)less predictable.
d)more predictable

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Depending on the organism the number of in a cell may change

The first amino acid of a new polypeptide chain is