Question 9 (2 points) Which of the following about the action of insulin on target cells is correct?
1) glucose binds to a cell-surface receptor to signal installation of insulin carriers
O2) insulin enters cells by protein-mediated diffusion
3) insulin binds to glucose carrier to open it
4) insulin increases protein-mediated diffusion of glucose

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human