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serg [7]
2 years ago
7

Which of the following are protective barriers that are part of the body's immune system​

Biology
1 answer:
Dmitry [639]2 years ago
3 0
The skin, mucous membranes, and endothelia throughout the body serve as physical barriers that prevent microbes from reaching potential sites of infection. Tight cell junctions in these tissues prevent microbes from passing through.
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What is the reaction needed to remove a glucose molecule from a polysaccharide, 100 glucose molecues long
vaieri [72.5K]

The reaction needed to remove glucose molecule from a polysaccharide is hydrolysis.

Glucose is a type of monosaccharide which is used in the body for energy.

These monosaccharides such as:

  • Glucose,
  • Fructose and
  • Galactose;

can combine together to form a larger molecule of sugar known as polysaccharides in a reaction called condensation reaction.

Examples of polysaccharides are

  • Chitin
  • Cellulose
  • Start
  • Inulin

These polysaccharides can also be broken down to form the various monosaccharides that makes them up.

The hydrolysis of polysaccharides involves the breaking of the glycosidic bonds that hold the monomers of a polysaccharide molecule together.

This leads to the formation of monosaccharides such as glucose.

Learn more here:

brainly.com/question/13183834

4 0
2 years ago
The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called _____.
adell [148]
<span>The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the lithosphere. </span>
3 0
3 years ago
Explain the leaching of plant nutrition​
Komok [63]

Answer:

In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. ... As water from rain, flooding, or other sources seeps into the ground, it can dissolve chemicals and carry them into the underground water supply.

6 0
2 years ago
Identify a scenario where an experiment would be replicated
Vsevolod [243]

Answer:

If you did not follow the procedure as you should have.

Explanation:

You may have to repeat an experiment for several reasons. It can be because you need to be certain of the results so that you have to perform it several times. Or you need more precise results so that you can fine-tune the variables and repeat the experiment again.

The most common scenario where an experiment would be replicated would be in a situation where you did not follow the procedure that you have outlined exactly like you should have so that the results you got are not 100% reliable. In such a case, the experiment would need to be replicated for the correct results.

I hope this answer helps.

3 0
3 years ago
Which letter in Figure 1 represents meiosis? Why?
SSSSS [86.1K]

The letter D in Figure 1 represents meiosis, while letter A represents mitosis. Meiosis is a reductional cell division.

Mitosis is a type of cell division where a parent cell divides to produce two genetically identical daughter cells (in this case, diploid cells).

Meiosis is a reductional cell division where a parent cell divides twice to produce four daughter cells having half of the genetic material.

Meiosis occurs in germinal cells, while mitosis occurs in somatic (body) cells.

Learn more about meiosis in:

brainly.com/question/7002092

3 0
2 years ago
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