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ZanzabumX [31]
3 years ago
14

The only t cells that can directly attack and kill other cells are the ________.

Biology
1 answer:
kotykmax [81]3 years ago
6 0
The answer would be cytotoxic cells.
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Sort the descriptions of open clusters and globular clusters into open clusters or globular clusters
Anestetic [448]

Answer:

open clusters are  A.no more than a few thousand stars, B.disorganized, F loose

globular clusters are C.tightly packed, D.more than a million stars, E.made of older stars

Explanation:

Globular clusters are old clusters of stars that have remained in a gravitationally bound system. These clusters are usually roughly spherical and can contain anywhere from a few thousand to a million stars. Globular clusters are found in our galaxy’s spherical halo, so they are distributed above, below, and level with the plane of our flat, disk-shaped Milky Way.

Open clusters are much younger and smaller than globular clusters. They are the recent birthplaces of new stars, which form out of clouds of dust and gas, and contain only hundreds or thousands of stars. Though the stars in an open cluster formed together out of the same material, they do not remain gravitationally bound over time and spread out, scattering their stars far and wide. Because they are not gravitationally bound, these clusters can have random and irregular shapes. They are located in the plane of our galaxy, along the spiral arms where the gas and dust in the Milky Way

8 0
3 years ago
What is anemophroia,hydrochoria,anthropochoria and zoochoria?​
Juliette [100K]

Answer:

also known as anemophobia, is an extreme fear of wind or drafts. It is rather uncommon, and can be treated. It has many different effects on the human brain. It can cause panic attacks for those who have the fear, and can make people miss out on regular everyday activities such as going outside.

In chemistry, a hydrochloride is an acid salt resulting, or regarded as resulting, from the reaction of hydrochloric acid with an organic base. An alternative name is chlorhydrate, which comes from French. An archaic alternative name is muriate, derived from hydrochloric acid's ancient name: muriatic acid.

Meaning of zoochoria in the Polish dictionary with examples of use. Synonyms for zoochoria and translation of zoochoria to 25 languages.

Anthropochore definition is - a plant that is regularly distributed by humans whether deliberately (as crop plants) or accidentally (as weeds).

Explanation:

8 0
3 years ago
What should a following are examples of fossil fuels?
sergij07 [2.7K]
B) cole, petroleum, natural gas
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3 years ago
Which statement best describes the limits of requiring land reclamation as the primary method for mitigating environmental damag
Gnesinka [82]

Answer:

Option-3

Explanation:

Land reclamation is the primary topic in the discussion. Hence statement describing its impact sounds more appropriate. It also covers the topic question more precisely.

3 0
3 years ago
Skeletal muscle tissue is striated and voluntary. true or false
Bogdan [553]
The answer is true all skeletal muscles are attached to some component of the skeleton, unlike smooth muscle which comprises hollow organs such as the intestines or blood vessels.

3 0
4 years ago
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