Please help on #21 I’ll mark you as brainliest if correct

I think the answer is J: desert.

Explanation:

In the grassland, rainforest, and swamp, it either rains frequently or is constantly surrounded by water.  However, deserts rarely get any water. Also, not many desert plants have leaves, but instead have very large stems, like cacti and large sage bushes. Therefore, the desert would be the most important habitat this could take place.

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white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.