A(n) is a one-celled organism formed by the union of a sperm and an egg. a. zygote blastocyst an. embryo d. fetus

What pattern of migration do whales follow?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

What was darwins theory of common decent