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astraxan [27]
3 years ago
8

What is the job of helper T cells

Biology
2 answers:
Alisiya [41]3 years ago
6 0

Helper T-cells help to activate an immune response by activating B cells to secrete antibodies, macrophages to destroy microbes, and T cells to kill infected target cells.

Julli [10]3 years ago
4 0

Helper T cells are very important cells in the adaptive immunity. They are required for almost all adaptive immune responses and They also help activate cytotoxic T cells and macrophages to attack infected cells.

I hope this helped, Good Luck!!

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The typical percentage of loss of energy in transfers from one trophic level to the next is about
ICE Princess25 [194]

D. 90%

Explanation:

  • When energy flows in a food chain, it is observed that the amount of energy flow decreases with successive trophic levels.
  • It is generally observed that approximately 90% of the energy available at a trophic level is used up and only remaining 10 % is transferred to the next .
  • This is termed as<em> </em><em>ten percent law.</em>
  • Thus, we can say that 90% of energy is lost when the energy is transferred from one trophic level to another.

8 0
3 years ago
Which of the following is not a type of primary meristematic cell found in apical meristems?
kiruha [24]

Answer:

A) Vascular cambium

Explanation:

(The vascular cambium is a type of cell found in lateral (not apical) meristems and is involved in secondary (not primary) growth.)

5 0
3 years ago
The natural ingredients in the medicine are most likely from which type of plant?
zmey [24]
From the ginkgo plant
4 0
3 years ago
What statements are true about the biological macromolecules.
photoshop1234 [79]

All biomolecules could be called carbon-based molecules.

The monomers of DNA are nucleotides.

Cell membranes are made, in part, from phospholipids.

The monomers of of starch are monosaccharides.

Explanation:

Biological macromolecules are giant carbon-based molecules. They are polymers made by complex condensation reactions linking them together.

These molecules are typically produced exclusively by living organisms and this is why they are called biological macromolecules.

They are usually classified as organic compounds for their linkage to living processes.

  • It is correct that all biomolecules are carbon-based molecules. They are primarily made up of carbon, hydrogen and oxygen with some other elements.
  • Deoxyribo-nuclei Acids are macromolecules that contains all information about the life of an organism. The DNA is located in the nucleus of cells and it is the genetic matter that controls life activities. The basic unit of DNA is the nucleotides.
  • Cell membranes are structural component of cells that helps to regulate the movement of materials in and out of the cell. They are made up of phospholipids.
  • Monomers of starch are monosaccharides. These are the simplest unit of  starch that cannot be further hydrolyzed. They are usually called simple sugars. Examples are glucose and fructose.

learn more:

Organic compounds brainly.com/question/5094081

#learnwithBrainly

5 0
4 years ago
Dissociative identity disorder is no longer controversial as the production of books and movies has raised a new understanding o
PtichkaEL [24]

The statement is False.

As the movies and books only heighten the controversy associated with the disorder.

<h3>What is Dissociative identity disorder?</h3>

Dissociative identity disorder is a mental illness in which the person is diagnosed with having two or more different personalities with memory gaps or forgetfulness in between these different personality states.

The disorder is a controversial one, and the movies and books focusing on the disorder have failed to reduce this controversy as these books and movies often associate the disorder with violence and crime and ignore other important aspects of the mental problem.

Hence the movies and books only heighten the controversy associated with the disorder.

To learn more about  Dissociative identity disorder click here:

brainly.com/question/9873821

4 0
2 years ago
Read 2 more answers
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