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Alexus [3.1K]
3 years ago
13

5. How is density affected when? answer all plz be correct

Biology
1 answer:
kirza4 [7]3 years ago
8 0

Answer:

A the temperature increases.

Explanation: When the same amount of water is heated or cooled, its density changes. When the water is heated, it expands, increasing in volume.

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Describe how lymph nodes and organs help the immune system fight pathogens.
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The defense system of the human body is made up of entire organs and vessel systems like the lymph vessels, but also of individual cells and proteins. The inner and outer surfaces of the body are the first barriers against pathogens (germs). These surfaces include the skin and all mucous membranes, which form a kind of mechanical protective wall.

Several things support this protective wall:

<span><span>- The body’s own antibacterial substances can disable different pathogens from the environment at an early stage. A certain enzyme found in saliva, the airways and tear fluid destroys the cell walls of bacteria.
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- Normal flora, harmless bacteria that reside on the skin and many mucous membranes in the body, also help to protect the body.</span></span>

The cough and sneeze reflex can also help to remove pathogens.


Hope this helps (:

4 0
3 years ago
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Pros and cons of solar energy
DaniilM [7]

Answer:

Pros:  solar energy is renewable, abundant, and eco friendly

cons: expensive and requires space

Explanation:

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4 years ago
BRAINLIEST!<br> Define procrastination and list 4-5 ways that you combat procrastination.
julsineya [31]

Explanation:

The action of delaying or postponing something is called procrastination.

4-5 ways that you combat procrastination are listed below :

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Cause and Efffect: Water dissolves many substances, The Cause is Water forms hydrogen bonds. What is the Effect?
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