Question

15. Horns in bighorn sheep rams are smaller than they were 50 years ago. This is most likely due to a) global warming b) character displacement c) trophy hunting d) phenotypically plastic 16. The slope of a line correlating average child height with mid-parent height represents a measure of a) heterozygosity b) broad-sense heritability c) narrow-sense heritability d) homozygosity Definitions/short answer: Character displacement Use an example (real or hypothetical) to explain the difference between VA and Vo

Answer 1

15. Horn in bighorn sheep rams are smaller than they were 50years ago this is most likely due to?

Answer is character displacement.

16. The slope of a line correlating average child height with mid- parents height represents a measure of?

Answer is narrow-sense heritability.

Character displacement:-

Character displacement is the term used to describe an evolutionary change that occurs when two similar species inhabit the same environment. Under such conditions, natural selection favors a divergence in the characters--morphology, ecology, behavior, or physiology--of the organisms. The concept has been understood at least since the English naturalist Charles Darwin was putting together his argument for evolution.