Which are examples of how farmers can prevent topsoil erosion?
check all that apply:
a. Pound...
Biology, 19.11.2020 22:30 sriggins917
Which are examples of how farmers can prevent topsoil erosion?
check all that apply:
a. Pound the into clay using an earth compaction
b. Carve steep hillsides into flat steps
c. Plow the topsoil often
d. Always have crops growing
Answers: 2
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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.
Answers: 1
Biology, 22.06.2019 13:20
Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear
Answers: 2
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