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3 years ago

A nebula, or swirling cloud of interstellar dust and gases,is seen. What happens next in the star formation procces?

Biology

2 answers:

dybincka [34]3 years ago

7 0

<span>Atoms begin to gravitate together to form a center</span>

CaHeK987 [17]3 years ago

7 0

Answer:

The next step in the process is the formation of a prestar core.

Explanation:

After the interstellar dust and gases concentrate in a determined zone gravity starts to unite them and they gather forming a core that is united by gravity. The surroundings start to disperse and the remaining dust starts to expand in the neighboring regions forming different levels of density in dust and gravity force. Which lately will form the satellites, planets or spacial objects that will be bound to the future sun. It is only the second step in the formation of the new star.

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Groups of skin cells form the epithelium, which lines organs and cavities in the body. The epithelium is MOST LIKELY a kind of A

jekas [21]

C) Tissue
Is the answer. Hope this helps.

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3 years ago

Read 2 more answers

Suppose that an adult black bear adds 50 pounds of fat in order to survive while hibernating through the winter. how much glycog

NemiM [27]

Answer: The correct answer would be 112.5 pounds

Explanation:

Let us first covert the pound into grams. We know that 1 pound is equal to 453.59 grams.

Thus, 50 pound of fat = 50 x 453.59 = 22,679.5 grams.

We know that, 1 gram of fat releases 9 Kcal of energy. Thus, total energy produced by 22679.5 grams = 9 x 22679.5 = 204,115.5 Kcal

Glycogen is carbohydrate thus, it will produce 4 Kcal of energy per gram.

Thus, 4 x C = 204,115.5 (where C is the grams of glycogen)

⇒ C = $\frac{204115.5}{4}$

⇒ C = 51,028.875 grams

Using 1 pound = 453.59 grams, we con convert 51,028.875 grams into pounds:

453.59 = 1

1 = $\frac{1}{453.59}$

51,028.875 = $\frac{1}{453.59} x 51028.875$

= 112.5 pounds

Thus, 112.5 pound of glycogen would be needed to produce the same amount of energy as produced by 50 pounds of fat.

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3 years ago

Infectious agents ( bacteria, virus and Protozoa) are NOT the cause of water pollution?

USPshnik [31]

If it’s a yes or no question then yes because they spread through organisms. there are many organisms in the water that bacteria can spread through

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3 years ago

Help pls- <br><br> compare and contrast evaporation and boiling

DENIUS [597]

So the simple answer would be evaporation is slow and can only occur through the surface of a liquid and it cools it down, while boiling is fast and produces bubbles ( evaporation does not ) and it occurs throughout the liquid and doesn’t cool it down. A similarity between the two would be water vapor is given off
Both the processes of evaporation and boiling result in a change from liquid to vapor.

hope this is what u we’re looking for and this helps !! :)

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3 years ago

The hormone calcitonin is produced by the __________ cells of the thyroid.

Orlov [11]

The answer is the parafollicular cells :)

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2 years ago