This is about animal cell. if anyone could pls help

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.

Diffusion and osmosis are forms of passive transport

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?