In a fox population , the allele frequency of a gene for red fur changes from 20percent to 30percent. what can you say about that population of foxes ? a. the population is expanding b. the population is evolving c. the population is decreasing d. the population is not evolving

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Which process of living things produces water that enters the water cycle

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.