When the levels of greenhouse gases in Earth's atmosphere increase, which statement is true? Earth's temperature increases because Hin increases. Earth's temperature increases because Hout increases. Earth's temperature increases because Hout decreases. Earth's temperature increases because Hin increases and Hout decreases.

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.

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

What's the waste product of electrons and pyruvate combining in fermentation?