Please heip i am giving away brainiliest for the best answer Which substance produced by the immune system is involved in both active and passive immunity?

A. antibiotic

B. antibody

C. vaccine

d. mucus

no dam links

Which of the following is an example of this type of co-evolution

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Asap indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. alleles: a=agouti, c=chinchilla, a=albino, a is dominant over c and a, c is dominant over a agouti x chinchilla a) 1/2 chinchilla, 1/2 agouti b) 3/4 chinchilla, 1/4 agouti c) all agouti