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iren2701 [21]
2 years ago
10

Please help thank you

Biology
1 answer:
Bingel [31]2 years ago
8 0
I believe it’s the first, third and fourth ones. I might be wrong and I’m sorry if I am.
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Karissa is conducting an experiment on the amount of salt that dissolves in water at different temperatures. She repeats her tes
Olenka [21]

Answer:

She could time how long it takes for each amount of salt dissolves in the waters. (as well as keep each amount of salt the same if she was not doing that already.)

Explanation:

This way, she could observe which water is best for dissolving solvents and which is most affective in the shortest amount of time. If she was not timing how long it takes for salt to dissolve in different temperatures of water, then the experiment may as well have been useless unless there is somehow a different objective.

4 0
3 years ago
Read 2 more answers
The idea that organisms share conserved, core processes can be used as evidence to explain that all life shares a common origin.
gladu [14]

Answer:

B is the correct answer.

Explanation:

Hope this helps:)

3 0
3 years ago
The ___________ propel debris-laden mucus away from lower respiratory system structures.
Aliun [14]

The cilia propel debris-laden mucus away from lower respiratory system structures.

<h3>What is function of mucous membrane?</h3>
  • Another general defense against possible infections is provided by the mucous membranes that line the digestive, urinary, and respiratory tracts, as well as the nose, mouth, and lungs.
  • In order to cover and protect the more delicate cell layers underneath it and to trap waste and particle matter, including microorganisms, mucous membranes are made up of a layer of epithelial cells connected by tight junctions.
  • Because they feature ciliated appendages, which resemble hairs, the epithelial cells lining the upper portions of the respiratory tract are known as ciliated epithelial cells.
  • Mucus that contains debris is forced out and away from the lungs by the cilia's movement. The mucus is then coughed up, sneezed out, or swallowed and destroyed in the stomach. The mucociliary escalator is another name for this route of elimination.

Learn more about the Mucous membrane with the help of the given link:

brainly.com/question/25968581

#SPJ4

8 0
2 years ago
Which of the following is a testable hypothesis?
beks73 [17]

The answer is B.

If you put one plant in wet soil, and one plant in dry soil, you can prove or disprove your hypothesis as the plants grow.

8 0
3 years ago
what country is most likely to be in stage for a population growth and with a low birth rate and low death rate​
Dimas [21]
I think the answer is china
3 0
3 years ago
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