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koban [17]
3 years ago
14

Which of the following is the first concrete evidence hazardous materials are present?

Biology
1 answer:
Minchanka [31]3 years ago
8 0

Answer:

Placards and labels

Explanation:

By checking labels you can identify if hazardous material is present or not.

Hope it helps!

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Cytotoxic T cells are rapid killers of infected target cells. Within minutes of the interaction of a cytotoxic T cell with a target cell, the program of apoptosis in the target cell is initiated. This rapid activity is a consequence of The extremely rapid production of granzymes and perforin by cytotoxic effector cells upon encountering a target cell.

  • A type of T cell known as a cytotoxic T cell (CD8+ T cell) is in charge of removing things that the immune system recognizes as dangerous.
  • Cytotoxic T cells are essential for controlling bacterial growth and illnesses in the body.
  • By instructing their targets to undergo apoptosis, cytotoxic T lymphocytes kill their prey.
  • Cytotoxic T cells can instruct antigen-specific target cells to die within 5 minutes of coming into contact with them when they are mixed with target cells and quickly brought into contact by centrifugation.
  • The speed with which cytotoxic T cells can induce apoptosis in their targets is due to the release of prepared effector molecules that trigger the target cell's own endogenous apoptotic pathway.

learn more about Cytotoxic T cells here: brainly.com/question/9292555

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8 0
2 years ago
Pls answer will give brainlest dont answer if you dont know
Strike441 [17]

Answer:

Methane is a chemical compound with the chemical formula CH4, symbolizing one atom of carbon and four atoms of hydrogen. It is a group 14 hydride and the simplest alkaline, and is the main constituent of natural gas. The relative abundance of methane on Earth makes it an economically attractive fuel, although capturing and storing it poses technical challenges due to its gaseous state under normal conditions for temperature and pressure. Methane naturally occurs both below ground and under the seafloor, and is formed by both geological and biological processes. In nature, methane is produced by the anaerobic bacterial decomposition of vegetable matter under water. Methane is important because it can be captured from landfills, can be burned to produce electricity, heat buildings, or power garbage trucks. Methane can also be captured from farm digesters, which are big tanks that contain manure and other waste from barns that house livestock such as cows and pigs. In fact, Jordan Dairy Farms in Massachusetts uses a biodigester to turn cow manure into methane gas, which is used for fuel or turned into electricity.

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3 years ago
Which animal type provides an example of a late loss survivorship curve?
Gre4nikov [31]

Answer:

C and D

Explanation:

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3 years ago
Which is an interaction of a living organism with a nonliving component of an ocean ecosystem
Tamiku [17]

Answer:

Explanation:

I dont know

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3 years ago
What is true about the structure or function of the plasma membrane?
Anit [1.1K]

Answer:the first one I believe!

Explanation:

Sorry if it is wrong I have already done this and I pretty sure it’s the first one!

5 0
3 years ago
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