What might cause an organism to lose a necessity of life?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What is the process of pulling apart an n2 molecule nevermind i got it

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