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andrezito [222]
3 years ago
13

For a cell to maintain the appropriate balance of materials inside and outside of the cell, materials must be able to move in an

d out of the cell. The degree in which materials are able to flow freely through a cell's membrane is known as
Biology
2 answers:
Svetllana [295]3 years ago
7 0
Diffusion is the movement of particles across a semi-permeable membrane from a lower concentration to a higher concentration
lukranit [14]3 years ago
5 0

Permeability is the answer.

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Which component of the Earth includes the water above, on, or in the Earth's crust? (This includes water in the oceans, seas, la
alekssr [168]

B. hydrosphere

Why? The hydrosphere contains all the waters on the earth's surface, including atmospheric moisture, such as clouds.

You're welcome. :)

5 0
3 years ago
to maintain a line of pure-breeding peas , selective breeders would use a technique called __________.
Basile [38]
To maintain a line of pure-breeding peas, selective breeders would use a technique called artificial cross-pollination. This is a technique were breeders transfer pollen from the anthers of one pea plant (male parent) to a stigma of a flower (female parent).

This technique was developed by Gregor Mendel, the founder of the science of genetics. He was a monk who dedicated his time in research about how genes of plants are carried over through specific species. In his controlled experiment he used the pea plant because they are cheap and readily available from merchants who sold them in different classifications. He also used pea plants because they have the capacity to self-pollinate or cross-pollinate.
5 0
3 years ago
Increased Serum Interleukin-2 Levels Are Associated with Abnormal Peripheral Blood Natural Killer Cell Levels in Patients with A
amm1812

In rheumatoid Arthritis patients, NK cell levels were abnormally elevated, possibly due to high serum levels of IL-2.

Rheumatoid arthritis (RA), is an autoimmune disease that means our own immune system attacks self healthy cells in the body by mistake, causing inflammation (painful swelling),mainly attacks the joints.

The given study is to investigate the relationship between serum interleukin-2 (IL-2) levels and disease activity.

This study also showed the relationship between absolute numbers of peripheral lymphocyte subsets, autoantibodies, and associated cytokines in patients with rheumatoid arthritis (RA).

The results showed that the number and percentage of NK cells were positively correlated with serum IL-2 levels so, IL-2 can be a reason for elevated level of NK cells

Learn more about Rheumatoid arthritis on

brainly.com/question/16920119

#SPJ4

7 0
2 years ago
One way the body fights invaders is by increasing the body temperature, or running a fever. Give a brief explanation as
goldfiish [28.3K]

Answer:

It can work against some viruses or bacteria by sweating out the invaders.

Explanation:

5 0
3 years ago
Fuel rods in the reactor vessel are made of ______
kkurt [141]
Uranium Is Made In Fuel Rods In The Reactor Vessel

6 0
3 years ago
Read 2 more answers
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