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Inessa [10]
4 years ago
7

What's a volcano ? Please help!!!!!

Biology
1 answer:
pav-90 [236]4 years ago
6 0
<span>a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.</span>
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What side of the moon do we see first
Roman55 [17]

If we could magically look down on our solar system, we would see that the half of the Moon facing the Sun is always lit. But the lit side does not always face the Earth! As the Moon circles the Earth, the amount of the lit side we see changes.

hope this helps!

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8 0
4 years ago
How many trophic levels are there in the following food chain?
Dmitry_Shevchenko [17]

Answer:

4

Explanation:

In the food chain that is presented there are four trophic levels. The first level is occupied by the phytoplankton, which is the producer, thus it is at level one on the energy pyramid. Second comes the shrimp, which is feeding on phytoplankton, but is prey upon by numerous other species, thus it is on the second level in the energy pyramid. In the third level of the energy pyramid we have the perch. It is a small carnivore, and it feeds upon the shrimp and many other small prey animals, but it is also preyed upon by many larger species. The pike and the osprey are occupying the fourth level in the energy pyramid. They are both predators, and they prey on on the likes of the perch and many other small fish and animals, but they are not at the top of the food chain, as they also have predators above them and prey on them.

7 0
3 years ago
Read 2 more answers
True or False? Osmosis causes water to flow back and forth through the cell membrane.
mash [69]
It is true, because water keeps going back and forth till there are an equal amount of molecules on BOTH sides.
3 0
4 years ago
Compare positive and negative feedback mechanisms
Alina [70]

Answer:

Positive feedback mechanism:

This mechanism has positive correlation between the products and the process. The positive feedback mechanism result in the growth of a product. This mechanism is less common in organism and perform under specific conditions. Example: Process of blood clotting involves positive feedback mechanism.

Negative feed back mechanism:

This mechanism has negative correlation  between the products and the process. Negative feedback mechanism result in the inhibition of the product. This mechanism is more common in organism and maintains homeostasis in the body.Example: Regulation of blood pressure involves negative feedback mechanism.

8 0
3 years ago
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The answer and just say the answer no links
andrew-mc [135]

Answer:

3

Explanation:

only answer with line diverging at 5 mil year

3 0
3 years ago
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