Biology, 30.09.2019 07:30, jaleelat3164

How does soil structure affect the characteristics of soil?

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Biology, 22.06.2019 02:40, angelteddy033

Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy ´ ´ ´ ´ yy

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Biology, 22.06.2019 07:40, pulliamdylan

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

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Biology, 22.06.2019 13:20, abolton04

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

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Biology, 22.06.2019 15:00, sisterskrrt

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture