What is the main organ has of elimination as a function?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Witch type of microscope is used to view very small cell components like proteins and dna?

What best describes the dropping height of a ball that bounces back up to a height of 45 cm