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inna [77]
3 years ago
9

Humans feel hungry when their empty stomachs contract and when glucose levels in the blood drop. Both of these

Biology
1 answer:
lbvjy [14]3 years ago
5 0
Circulatory, digestive, muscular, and nervous
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Cytotoxic T cells and NK cells kill by secretion of proteins. The first called granzyme which forms complexes that penetrate the
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Answer:

<u>Option-(True):</u> The following statement is true in all sense, as the "Cytotoxic T cells and NK cells kill by secretion of proteins. The first called granzyme which forms complexes that penetrate the cell membrane and allows the passage of the apoptosis inducing protein perforin to enter the targeted cell."    

Explanation:

  • In order to make it more difficult for the pathogens and other foreign particles to stay inside the human body, the defense mechanism of the human body system has evolved itself to great extents as there are different level of immune layers and more over cells that either helps in the recognition of these anti-bodies or attacks them to be eliminated from the given system.
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3 years ago
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Which statement is true according to plate tectonics theory?
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A beif deescriprion of the following organelles.
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Sorry I don't know all of them...

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What are the ideal conditions for photosynthesis? (Light intensity, Co2 levels, and temperature).
lyudmila [28]

Answer:At medium temperatures, between 50 and 68 degrees Fahrenheit, or 10 and 20 degrees Celsius, the photosynthetic enzymes work at their optimum levels, so photosynthesis rates gauge high. Depending on the particular plant in question, set the greenhouse thermostat to a temperature within this range for best results.

Explanation:

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