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hoa [83]
3 years ago
5

This feature of the prokaryotic cell helps the cell to stick to surfaces.

Biology
2 answers:
algol [13]3 years ago
6 0

Answer:

Pili

Explanation:

I know for a FACT! Trust me

lozanna [386]3 years ago
5 0
D. Flagella

Flagella helps the cell stick to a surface.
I hope this helps! Good luck.
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frebel, h., richter, k. and oxenius, a., how chronic viral infections impact on antigen-specific t-cell responses. eur. j. immun
jekas [21]

The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.

<h3>What are T cells?</h3>

T cell is also called as T lymphocyte, it is also a important part of immune system. T cell originate in the bone marrow and mature into the thymus.

There are three types of T cells:

  • T helper cell
  • T killer cells
  • T cytotoxic cells.

Helper T cells secrete chemical messengers called cytokines. Regulatory T cells helps to control immune reactions. They are released into blood streams.

Therefore, The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.

To learn more about T cells, refer to the link:

brainly.com/question/1434048

#SJ2

6 0
2 years ago
What are soft and hard callus? What are their functions?
Sever21 [200]
The next bone healing stage is called the hard callus<span> stage.This transformation occurs when bone forming cells called osteoblasts travel across the </span><span>soft callus.</span>
7 0
3 years ago
The atrioventricular valve is:
Mademuasel [1]
A) A flap in the heart located between each atrium and ventricle.
Hope it helps! :)
6 0
3 years ago
Read 2 more answers
When elements combine to form compounds what happens to the properties of the original elements?
exis [7]
The properties of the original elements are completely changed.

For example, in the compound called "iron(II) sulphide", it is composed of iron and sulphur, that are chemically combined together. The element iron is attracted to magnets. Meanwhile, iron(II) sulphide is not attracted to magnets. 

Another example is where sulphur has a yellow colour, but iron(II) sulphide has a brownish colour. As we can see, even the physical properties (colours) are completely different.

Therefore, the properties of the original elements are completely changed when they're combined into compounds.





3 0
3 years ago
What are characteristics of allosteric enzymes? They may have binding sites for regulatory molecules that are separate from acti
stepan [7]

Answer:

The characteristics of allosteric enzymes are listed below.

Explanation:

1 They may have binding sites for regulatory molecules that are separate from the active site.

2 They tend to have sigmoidal curve of V0 vs [S].

3 They undergo conformational change as a result of modulator binding

3 0
3 years ago
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