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Iteru [2.4K]
3 years ago
14

If cells cannot visually inspect other cells, how do the cells of our immune system know if a particular cell they encounter is

part of us or part of another organism?
Biology
1 answer:
Anna007 [38]3 years ago
6 0

Answer: Body recognizes the self cells and non-self cells by the help of the markers that is found on the cell.

Explanation:

The body has the ability to recognize the difference between the cells of the body and the cells that are not of our body.

The body recognizes the cells as self or non self. The cells of the body has coating made of glycoprotein which acts as the identifying markers for the cells of the body.

The blood type is one of the best example to encounter the self and non self cell. The body recognizes the blood of another person as another protein and considers it as antigen.

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Which human activity creates the least threat to global stability
8_murik_8 [283]
The human activity that creates the least threat to global stability is : Reuse of Plastic bags.
Plastic bag need a lot of time to be degraded in the soil which will create a threat to the environment. Reusing plastic bag will reduce this threat.

hope this helps
5 0
3 years ago
Water with dissolved soil in it percolating through a rock is an explane of what? ( weathering, erosion, or deposition)
frosja888 [35]

I'm pretty sure it's deposition because the sediments in the water(soil) are building up on the rock.

5 0
3 years ago
Without undergoing any changes itself, the _____ makes changes to the ______.
BigorU [14]

Without undergoing any changes itself, the enzyme makes changes to the substrate.

<h3>What is an enzyme?</h3>

An enzyme is a biological catalyst that acts by lowering the activation energy in a chemical reaction.

In a chemical reaction, an enzyme binds to a substrate to convert it to one or more products.

In conclusion, without undergoing any changes itself, the enzyme makes changes to the substrate.

Learn more about enzymes here:

brainly.com/question/1596855

#SPJ12

5 0
2 years ago
How long does it take for a water bottle to decompose?.
Elodia [21]

Answer:

450 years

Explanation:

well, according to some researchers, They estimate that due to the PET used in objects like plastic bags, plastic water bottles and plastic straws, it could take upwards of 450 years to decompose.

8 0
3 years ago
Connect the importance between meiosis and the process of sexual reproduction. Is it possible to survive without your reproducti
Aleksandr [31]
It must be known that there is an interdependent relationship between meiosis and sexual reproduction. During sexual reproduction, meiosis generates a genetic variation in the offspring because it randomly shuffles genes across chromosomes and then randomly segregates half of those chromosomes into each gametes. These two gametes or sex cells then fuse randomly to form a new organism. One of the key factors in evolutionary fitness and biological diversity is genetic variation. This can be made possible through reproductive cells undergoing meiosis since such process has specialized sex cells split and multiple after copulation.

To answer the question if is it possible for a human to survive without a reproductive system, the answer is yes.

Reproductive organs of both men and women are vital to create a child. But it must be noted that both can live without them. There are situations that sometimes necessitates the removal of such organs especially if he or she is inflicted with cancer or other diseases.
4 0
3 years ago
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