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tino4ka555 [31]
4 years ago
10

What causes the collapse of a nebula?

Biology
1 answer:
Otrada [13]4 years ago
8 0

Answer:

Irregularities in the density of the gas causes a net gravitational force that pulls the gas molecules closer together. Some astronomers think that a gravitational or magnetic disturbance causes the nebula to collapse. As the gases collect, they lose potential energy, which results in an increase in temperature.

Explanation:

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Negative feedback
zhuklara [117]

Answer:

b. Works within an upper and lower range

c. " Is regulatory. "

d. Is very common in biological systems

Explanation:

Negative feedback is the regulatory mechanism that maintains homeostasis by counteracting the deviation. Any change serves as a stimulus and a response is produced to reverse the change. Negative feedback is a very common regulatory mechanism to maintain internal body conditions within a narrow range.

For example, the body temperature in adults is maintained within the narrow range of around 36 -37 degrees Celsius. An increase or decrease in the body temperature from the set point is counteracted to restore the set point. An increase in body temperature is reversed by the vasodilation of blood capillaries of skin layers to lose the heat to the surroundings. On the other hand, reduced body temperature below the set point is restored by constriction of capillaries of skin layers.

7 0
3 years ago
The integumentary system is composed of what type of tissues?
adell [148]
I would say C but In the integumentary system there are four main tissue types, those are Epithelial, Connective, Nervous and Muscular tissue
6 0
3 years ago
The diagram represents part of a plant cell. Identify the location in the plant cell where carbon dioxide fixation occurs.
o-na [289]
Carbon dioxide fixation in plants occurs at the STROMA. 
Carbon dioxide fixation is the first step in the Calvin cycle and it occur in all plants. Carbon fixation is the process by which inorganic carbon is converted to organic compounds by the plants. The process of carbon fixation converts carbon dioxide and ribulose biphosphate into 3 phosphoglycerate.
6 0
4 years ago
Read 2 more answers
I need the word scramble part only
Harman [31]
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3 0
3 years ago
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In chemical reactions, atoms are
liraira [26]

Answer:

B

Explanation:

The atoms that started out in hydrogen peroxide molecules are rearranged to form water molecules.

4 0
4 years ago
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