Over time, color variation in a population of butterflies declined. the number of color variations within the population was twelve in 1985. in 2005, the number of color variations reduced to three.

what type of selection is responsible for reducing variation?

a.

disruptive selection

b.

artificial selection

c.

directional selection

d.

stabilizing selection

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

List two modern organisms that have pentameral symmetry

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?