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Nuetrik [128]
3 years ago
7

What do astronomers think dark energy is doing to the expansion of the universe?

Biology
1 answer:
son4ous [18]3 years ago
5 0

Answer:

Accelerating it.

Explanation:

Dark energy is a hypothesis by which the growing tendency of the universe to expand constantly is explained, with which it is inferred that this dark energy is a kind of inverse gravity, which instead of attracting repels the extremes of the cosmos expanding its size and dimension . Although its definition is very ambiguous and abstract, the truth is that it is a hypothesis that seeks to explain this physical behavior of the cosmos.

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I think it is concrete.
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3 years ago
______ are chemical messengers secreted by glands. Exocrine glands, such as sweat glands, secrete fluids through ducts. _______
rusak2 [61]

Answers:

Hormones are chemical messengers....

Endocrine glands secrete hormones...

The pituitary gland plays...

is produced by the adrenal glands...

the gland will produce fewer amounts of the hormone...

produce chemicals called paracrine factors...

blood is called the thyroid.

Steroid hormones are synthesized from cholesterol, while nonsteroid hormones are synthesized from modified amino acids and small peptides. Non-steroid hormones are not lipid-soluble and therefore they need to bind to a receptor on a cell membrane; while steroid hormones can diffuse through the cell membrane.

Explanation:

Hormones are signaling molecules synthesized by glands. The endocrine glands include the adrenal glands, pineal gland, thyroid gland, parathyroid gland, pituitary gland, ovaries, testes, pancreas and hypothalamus. The pituitary gland is an endocrine gland that secretes hormones capable of stimulating the adrenal glands in order to produce steroid hormones. Hormone levels are often modulated by negative feedback, by which high-hormone levels reduce their own production. Paracrine factors (also known as growth and differentiation factors) are proteins that can diffuse across small distances in order to induce responses in neighboring cells. The thyroid gland secretes hormones involved in regulating metabolism and growth. Moreover, the thyroid gland also secretes calcitonin that regulates calcium levels in the blood.

8 0
3 years ago
Read the box first and then answer the 2 guide question.<br><br>explain your answer.​
dalvyx [7]

Explanation:

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2. In today's generation,

Electric cigarettes or "vape" became popular as people were searching for an alternative to cigarette(tobacco) .

7 0
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pickupchik [31]

Answer:

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8 0
3 years ago
This type of injury could cause a lose of
Annette [7]

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6 0
3 years ago
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