Which does a pyramid of numbers display? Choose the correct answer. a chain of feeding relationships
a network of feeding relationships
O the amount of biomass in an ecosystem
O the number of organisms in an ecosystem

What is the most appropriate method of gaining weight (muscle mass)

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because