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KATRIN_1 [288]
3 years ago
14

What is the function of heart valves?

Biology
2 answers:
tatyana61 [14]3 years ago
6 0

Answer:

C.

Explanation:

yuradex [85]3 years ago
3 0
The valves prevent the backward flow of blood.
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Is plankton biotic or abiotic?
faust18 [17]

Answer:

Explanation:

Not only is the biota important, but the abiotic factors in the ocean are also important because both groups work together. The abiotic factors in the ocean help the ocean to 'work'. For example, phytoplankton (autotrophs) need light, nutrients, CO2 (dissolved gases) to photosynthesize.

4 0
2 years ago
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An air mass that originates in the Pacific ocean, west of Brazil, is most likely
kykrilka [37]

An air mass that originates in the Pacific ocean, west of Brazil, is most likely WARM AND WET.

A. warm and wet

<u>Explanation:</u>

The pacific ocean has the tropical maritime air mass so it is warm and wet. they affect the United States originate over the Caribbean sea, Mexico, pacific and the western Brazil.

So the air masses in the pacific ocean, western Brazil are wet and warm.the air masses have the fairly uniform temperature and the moisture content in the horizontal direction.

Air masses are characterized by their temperature and the humidity properties. The air mass where the originate is based on the surface properties.

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3 years ago
How do sediment deposits affect waterwats
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<span>The deposition of heavy sediment can significantly diminish the water quality and aquatic habitat.  The sentiment in the water can reduce the sunlight that reaches the floor of the waterway, affecting animal and plant life. For example, photosynthesis may be less effective due to the decreased sunlight and the gills of fish may get clogged from the sediment.</span>
4 0
3 years ago
What is meant by the following statement? The cell membrane is semipermeable. A. The membrane allows all polar molecules into th
Gennadij [26K]

I believe the correct answer would be B.  Semipermeable means that it allows certain substances to pass through, and certain other ones to not pass through.  So given all of your options, I would say that B makes the most sense.  Hope this helped!

-TTL

7 0
2 years ago
Photosynthesis Puzzle #3
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Answer:

They all have cholorophyll

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