Which of the following is true for a eukaryote? A. it is one of the first life forms to appear on earth.

B. it doesn't have a nucleus and organelles.

C. it must be a multicellular organism.

D it evolved from prokaryotes

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

18. which statement about cancer is true?