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liraira [26]
3 years ago
14

URGENT!!! Please help :((

Biology
1 answer:
enyata [817]3 years ago
7 0

Look kid, this question has been up for 9 hours think its time to let it go......... hoped i helped. ✔verified✔

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Water crosses the plasma membrane through special channels known as _____.
Vinil7 [7]

Answer:

<em>aquaporins.</em>

Explanation:

4 0
3 years ago
If a cell is placed in salt water ,water leaves the cell by
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The answer would be osmosis
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4 years ago
True or False. The complement system consists of several proteins that circulate in the blood and have the ability to enhance bo
nirvana33 [79]

Answer: False

Explanation: The COMPLEMENT SYSTEM consists of proteins synthesized in the liver. They are activated by inespecific harmful substance (antigen) and begins a cascade of proteins that finally forms an attack complex against bacteria.

The COMPLEMENT is part of the INNATE IMMUNITY, because it is an inherent response, something all humans born with, and it is part of the first defense barrier against any antigen. Part of the innate immunity are too: natural killer cells, neutrophils, monocytes, dendritic cells and macrophages.

On the other hand, the ADAPTATIVE IMMUNITY, is the response that the body develops after being exposed to an antigen before. It is like something that the body recognizes, and then "learns" how to act against it. Part of the adaptative immunity are: lymphocyte T and B, and the antibodies (substances called Immunoglobulins). The immunoglobulins (Ig) are glycoproteins present in the blood.

4 0
4 years ago
It is what you do when you eat. Unscramble these letters to find the answer. Ellgist
dexar [7]
What it is , you do when you eat




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5 0
3 years ago
NEED HELP PRETTY PLEASE WITH A CHERRY ON TOP
Kruka [31]

ANSWERS:

They are both ionic compounds.

These compounds are made up of H^{+} cations (positively-charged ion) and either NO_{3}^- or SO_{4}^{-} anions (negatively-charged ions).

Their names both end in -ic acid.

Acids are named based on their anion. With acids like these where the anion is attached to a hydrogen cation, we name such acids with the the suffix “-ic”.

They both contain polyatomic ionic.

NO_{3}^- and SO_{4}^{-} are both polyatomic ions.

"Poly-" = many

"ions" = have a + or - charge

So, yes, these are ions that are made up of several atoms (not just one atom like H^{+})

5 0
4 years ago
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