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Naya [18.7K]
2 years ago
8

What two habitats lack trees shrubs and liquid water

Biology
2 answers:
Y_Kistochka [10]2 years ago
4 0

Answer:

B

Explanation:

GaryK [48]2 years ago
3 0

Answer:

The answer I'd say is B.

Explanation:

The desert is too hot for liquid water or any trees and shrubs

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20 points
kolbaska11 [484]
C, 45% I'm pretty sure










8 0
3 years ago
Read 2 more answers
15. Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 30 percent solute solu
Vaselesa [24]

Answer:

Smaller

Explanation:

The human blood cell has a smaller percentage of solute concentration than the solution it was placed into. This means that the cell is hypotonic in comparison to the solution, and the solution is hypertonic compared to the cell. When a cell is placed in a hypertonic solution it undergoes crenation, meaning it shrivels up. Water moves from the lower solute concentration to the higher solute concentration. The water inside the cell moves outside to the hypertonic solution. This causes the cell to become smaller.

8 0
3 years ago
The human immunodeficiency virus (hiv) that causes the disease known as aids selectively infects ________ cells.
Furkat [3]

The human immunodeficiency virus (HIV) that causes the disease known as aids selectively infects helper T cells (CD4+).

This retrovirus also infects macrophages and dendritic cells. When CD4+ T cell numbers decrease below a critical level (due to the killing of this cells with different mechanisms), cell-mediated immunity is lost. As a result, the body becomes progressively more susceptible to infections, leading to the development of AIDS.

<span> HIV can be transmitted only via body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk, which means that people usually get or transmit HIV through sexual behaviours and use of the needle. For HIV infection, these fluids must come in direct contact with a mucous membrane or damaged tissue. Another way is to be directly injected into the bloodstream (from a needle for example).</span>

7 0
2 years ago
_____ is the process by which indivuduals that are better adapted to their environment are more likely to survive and reproduce
zubka84 [21]
Adaption is the answer for this one.
8 0
3 years ago
1) a) In ONE sentence only, how is telomerase activity different from DNA polymerase activity during DNA elongation? b) In ONE s
Ipatiy [6.2K]
1. During DNA elongation, polymerase enzyme adds new, free nucleotides to the three prime end of the newly forming strand, elongating it in  five prime to three prime direction while the telomerase protects the important genes at the end of the chromosome from been deleted as the DNA strand shorten during DNA elongation.

2. During DNA elongation, helicase enzyme separates the double stranded DNA  into single strand by melting the hydrogen bond that holds the DNA molecule together thus enabling each strand to be copied while the telomerase acts by preventing the telomere from been deleted during elongation.
7 0
3 years ago
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