The atmosphere of the early Earth A) had lots of oxygen
B)had almost no oxygen
C)was full of birds
D)had no carbon dioxide

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

Regarding most of the narrator’s story, which word best describes the tone?

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.