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morpeh [17]
3 years ago
11

Dr. Semmelweis, a physician from Austria, wanted to locate the cause of childbed

Biology
2 answers:
user100 [1]3 years ago
7 0

Answer:

Hypothesis

Explanation:

tatuchka [14]3 years ago
5 0

Answer:

Hypothesis

Explanation:

A hypothesis is an educated guess, based on evidence provided by the initial question the scientist had. I hope I helped you:)

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If the amount of sodium in the blood increases, what would a negative feedback control mechanism be expected to do?
Crank

Answer: Decreases

Explanation:

The amount of sodium in the blood will increase as the main function of the negative feedback is to maintain the homeostasis inside the body.

If blood pressure is too high, then heart rate decreases because of this the blood vessels increases in the diameter and the kidney retains less water.

These changes will return the blood pressure to be normal. The same process gets reversed when the blood pressure decreases.

3 0
3 years ago
On the Galapagos Islands, Darwin observed tortoises with domed and saddle-shaped shells. How did Darwin's observations of these
photoshop1234 [79]

Answer:

The correct answer would be C.  The tortoises provided evidence that different species have adaptations suited to their particular environments.

Darwin observed that how different environment on different island lead to the development of different species as a result of adaptations and natural selection.

For example, tortoise inhabiting well-watered islands which used to have short and cropped vegetation had developed a dome-shaped shell.  

In contrast, the tortoise inhabiting the arid islands had developed saddle-shaped shells. It is because they needed to stretch their necks in order to reach branches of cactus and other vegetation available in the area.  

Consequently, they developed long necks and high peak to the front edges of their shells. It made it possible for them to stretch their heads vertically.

7 0
3 years ago
Read 2 more answers
What do populations living at high elevations have to adapt to?
satela [25.4K]

Answer:

c lower oxygen levels

Explanation:

the higher up the person is the closer to the atmosphere so there is less oxygen

4 0
3 years ago
30 points brainiest given if correct Drag each tile to the correct box.
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3 years ago
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In which situation is the principle of cross-cutting relationships useful in determining relative age?
Rzqust [24]

Answer: Igneous rock forms between sedimentary layers.

This can definitely help in determining relative age because sedimentary rocks will be the older rock than igneous rock as igneous rock has formed between sedimentary rocks

Explanation:

8 0
3 years ago
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