Support the claim Inherited genetic variations are caused by genetics only. They caused by crossing over and assortment in the development of sex cells in meiosis. The random joining of sex cells can also be a source of genetic variation. Mutations also cause variations in genetic sequences. Mutations are always harmful.

List two modern organisms that have pentameral symmetry

Does mitochondria still meet the definition of a eukaryote why or why not?

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.