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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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!!!!PLEASE HELP ASAP!!!!
velikii [3]

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Parasitic plant and insecticide plant defination​
Elina [12.6K]

parasitic plant = A parasitic plant is one that survives at the expense of another, often living and growing on and over the host plant, while siphoning off the other plant’s nutrients and water, and sometimes blocking access to sunlight.

insecticide plant = Insecticide, any toxic substance that is used to kill insects. Such substances are used primarily to control pests that infest cultivated plants or to eliminate disease-carrying insects in specific areas. insecticide application. A farmer sprays insectides in a rice paddy in Japan.

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How does global warming affect the spread of disease and the habitats of animals on earth
pychu [463]
Global warming affects the spread of animals because different areas will become suitable for different species, so they spread out. This can cause diseases to spread, as the animals may bring them with them. This can also happen in the opposite direction, where the climate change causes less habitats to be suitable for animals, so they become more sparse
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Artyom0805 [142]

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What might two controlled variables (constants) Lisa would use for this experiment? ​
zhuklara [117]

There is no context so I will just explain what a constant is:

In an experiment following the scientific method, a constant is a variable that cannot be changed or is purposely not changed during the experiment.

An example would be:

If a researcher wanted to study the effects of temperature on the growth and development of garden snakes, the experimental variable for the experiment would be temperature. All other variables would need to remain consistent to avoid invalid data. The size of the cage, amount of light, food and many other variables would need to remain constant to ensure accurate results and a valid study. Those variables are constants. Some variables are not under a scientist's control, but are still considered to be constants. These constants are called universal constants and include gravity, the speed of light and electronic charge. Universal constants do affect experiments but will be constant through an experiment without being controlled by the scientist.

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