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Ghella [55]
3 years ago
13

What is a baseline for an experimental investigation?

Biology
1 answer:
Arlecino [84]3 years ago
5 0
A minimum point used for comparison i think
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Lymphocytes that destroy foreign cells or virus- infected cells are ________ cells.
nexus9112 [7]

Lymphocytes that destroy foreign cells or virus- infected cells are cytotoxic T  cells.

<h3>What is cytotoxic T cell?</h3>
  • A particular class of immune cell that is capable of eliminating specific types of cells, such as virus-infected cells, cancer cells, and alien cells.
  • To destroy cancer cells, cytotoxic T lymphocytes can be isolated from other blood cells, cultured in a lab, and then administered to a patient.
  • White blood cells and lymphocytes both fall under the category of cytotoxic T lymphocytes.
  • It is also known as a killer T cell and a cytotoxic T cell.
  • The helper T cell and the cytotoxic T cell are the two main subtypes of T cells.
  • Helper T cells, as their names imply, "assist" other immune system cells, whereas cytotoxic T cells "kill" virally-infected cells and tumours.
  • The TCR cannot directly bind antigen, unlike an antibody.

Learn more about cytotoxic T cell here:

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8 0
1 year ago
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Review the chart, which shows the population sizes of three African animals in 1990 and in 2000.
Dmitriy789 [7]

Answer:

The population is decrasing

Explanation:

As we can see from the chart, the diversity of animals in Africa are being affected year after year. In 10 year gap 53,000 lions, 42,500 cheetahs and 12,500 zebras are dead and this is a dangerous sign.

6 0
3 years ago
Fill in the blank<br><br> DNA IS NOT “TURNED ON” ALL OF THE _____ IN ALL OF THE CELLS.
Montano1993 [528]
Maybe it is nucleus or mitochondria!?
8 0
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How were the molecules moving in the morning?
pantera1 [17]

Answer:

In the morning the molecules were moving away from each other with a smaller speed than when the truck was carrying the substance.

BRAINLIEST IS APPRECIATED :)

6 0
3 years ago
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liberstina [14]

Answer:

amoeba: 1 mutation

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lizard: 5 mutations

kangaroo: 5 mutations

dolphin: 5 mutations

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