Examine the differences between the common ancestor’s original gene and the genomes of the existing species. How can these changes affect the development of the protein in the descendant species?

common ancestor: AGATCCTAGA
20 million years: AGATCCTACA 20 million years: AGAACCTAGA
40 millions years: AGATCCTATCA 40 million years: AGAAGCCTAGA

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above