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vladimir1956 [14]
3 years ago
12

What’s this ? because I don’t understand it

Biology
1 answer:
kow [346]3 years ago
4 0

Answer:

D) 60 i think

Explanation: in 2016 the rural population was 20 and the urban population was 60 so if you start counting from 20 in 2016 up to 80 in 2016 its 60

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How does the action og wind affect a rock appearance<br>​
Leona [35]
Wind causes the lifting and transport of lighter particles from a dry soil, leaving behind a surface of coarse grained sand and rocks. The removed particles will be transported to another region where they may form sand dunes on a beach or in a desert. Wind erosion is referred to as eolian erosion. Differences in atmospheric pressure will cause the motion of air that can erode surface material when velocities are high enough to move particles.


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3 0
3 years ago
Humoral immunity involves ________ cells and ___________
jarptica [38.1K]

Answer:

Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

Explanation:

Humoral immunity is defined as the immunity which is mediated by several macromolecules presnet in the extracellular fluids such as antibodies, certain antimicrobial peptides, and  complement proteins.

Humoral immunity allows to distinguishes two groups of foreign substances. it involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood. </u>

Humoral immunity begins when an antigens bind to B cells.  Interleukins or helper T cells provides a secondary signal to the B cells that activates a B cell and allows B cell proliferation.  which roduces produce plasma cells. The plasma cell then produces antibodies which are identical to the specific antigen. The antibodies are the released and circulate through the body, binding to antigens.  B cells the further produces memory cellss for future immunity.

So, Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

8 0
3 years ago
Analyze how different concentrations of solutes in a solution can affect organism's cells. In your own words 150 word count, pls
lions [1.4K]

Answer:

In creature cells, if an answer that the cell is in has an equivalent measure of solute as within the cell does, the cell will continue as before size. On the off chance that there is more solute outside of the creature cell, the cell will recoil in light of the fact that the water will tail it out of the cell hypertonic arrangement. On the off chance that there is less solute outside of the creature cell, the cell will develop in light of the fact that the water will take after the more prominent solute within the cell hypotonic arrangement.

Explanation:

5 0
2 years ago
Read 2 more answers
Pleaseee helpppppppp!
Dafna11 [192]
The correct answer is d
6 0
2 years ago
Read 2 more answers
Ok is that 23 in females or 23 in males?
anastassius [24]
Both, actually. They both add up to 46 chromosomes. If you have less than 46, you will come out with Autism. Hope this helps!
3 0
3 years ago
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