Which of the following is a correct statement about the events of the cell cycle? a. dna replicates during the s phase b. interphase consists of the g1 and g2 phases c. little happens during the g1 and g2 phases d. the m phase is usually the longest phase

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d