Through which of the following do sperm cells travel to reach the urethra? epididymis vas deferens penis testes

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

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

Can a trait be both polygenic and have multiple alleles? explain why or why not.