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qwelly [4]
3 years ago
5

You find a rock sample with radioactive atoms present. 25% of the original radioactive atoms were present, how many half lives

have passed
Biology
1 answer:
diamong [38]3 years ago
5 0

Answer:

Im literally taking a test that my teacher made and i have no idea what the answer is

Explanation:

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A(n) _______ is an uncontrolled positive feedback loop between cytokines and leucocytes.
Vinvika [58]

Answer:

The given blank can be filled with cytokine storm.

Explanation:

Generally, influenza is self-restricting. Though serious cases can result in pneumonia and other issues, which can be deadly. However, such cases are very common in the elderly and in very young individuals. There are certain strains of the influenza virus, which are more dangerous to young adults in comparison to old or very young.  

The strains, which influence young adults are considered to comprise a cytokine storm, that is, a positive feedback loop, which produces in between the production of cytokines and leukocytes. This cytokine storm generates an acute inflammatory reaction, which results in brisk accumulation of fluid in the lungs, resulting in pulmonary failure. The very young or very old are less vulnerable to this influence as their immune systems are less strong.  

4 0
3 years ago
What is photosynthesis? Mention function of any one plant part involved in this process.
german

Answer:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves. The leaves collect energy from the Sun and make food for the plant, using an amazing process called photosynthesis.

Explanation:

4 0
2 years ago
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On Earth, most years are 365 days long. On Saturn, a year is 10,740 days long. Why is a year on Saturn so much longer than a yea
mr Goodwill [35]
I would say its because Saturn is so far away from the Sun and when it orbits the Sun its like 9.5 NU 
7 0
3 years ago
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which of the following are the three goals of science? a. to make life easier, to extend the human life span, to reduce pain and
goldfiish [28.3K]
C) To gather info about the natural world, to explain natural phenomena, and allow reasonable predictions of future events
4 0
3 years ago
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GIVING OUT A LOT OF POINTS FOR THIS, DONT USE ME OR IMA REPORT
valkas [14]

Answer:

Viruses cannot reproduce on their own, but inject their DNA into living cells in order to make copies of themselves.

Explanation:

A virus cannot reproduce itself outside the host because it lacks the complicated machinery that a [host] cell possesses.

8 0
3 years ago
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