how do spermatogenesis and oogenesis differ in terms of the number of gametes they produce?

Which of the following typically characterizes a tropical rainforests

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

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