Populations change naturally over time. which mechanism is a method of artifical selection rather than natural selection?
a) genetic drift
b) natural selection
c) selective breeding
d) geographic isolation

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

What are the two main phases of a cell cycle

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one