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asambeis [7]
3 years ago
14

Look at this image of a galaxy.

Biology
2 answers:
Alex787 [66]3 years ago
6 0

Answer:

D. Spiral

Explanation:

levacccp [35]3 years ago
4 0
A spiral galaxy is being shown
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Estrogens from the vesicular follicle trigger an LH surge from the anterior pituitary. This is an example of: Estrogens from the
brilliants [131]

Answer:

The correct answer is: positive feedback.

Explanation:

Positive and negative feedback are terms that are used to define the way a system is regulated by its products. For example, when the production of a certain substance <u>inhibits</u> its producer that is called <u>negative feedback</u>. On the other hand, when a substance <u>stimulates</u> its producer to keep secreting said substance, this is called <u>positive feedback</u>.

Estrogen is a hormone of great importance in the female reproductive cycle and is secreted by the follicle cells in response to the presence of FSH (follicle-stimulating hormone), released by the anterior pituitary when stimulated by the GnRH (gonadotropin-releasing hormone).

Estrogen appears at the beginning of the cycle to stimulate the development of the ovarian follicles, and the hormone levels continue to rise as the cycle advances. Up until the 14th day of the cycle, estrogen has a negative feedback on GnRH and FSH, but then it makes an abrupt change to now exert positive feedback on GnRH to stimulate the release of LH (luteinizing hormone), which will be responsible for ovulation.

7 0
3 years ago
In the water cycle, the sun provides
Eva8 [605]
The answer I would say is A.

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And electricity doesn’t come from the water cycle.
3 0
3 years ago
What are the roles of producers consumers and decomposers in an ecosystem
mariarad [96]

Answer: The producers refers to green plants that carry out the process of photosynthesis in order to produce food for themselves and others. The principal function of producers is to manufacture food for themselves and all other living organisms.

The consumers refers to those living organisms that can not produce their own food and have to depend on the food produce by others. Consumers can be categorized into primary, secondary and tertiary consumers depending on where they are located on the trophic levels. They can also be classified as herbivores, carnivores and omnivores depending on the type of food they eat. The major function of consumers is transference of energy. Consumers transfer the energy they obtain from the food they eat to those animals that feed on them.

The decomposers are those micro organisms that are majorly found in soils.The principal function of decomposers is to break down dead organic matters so that they can be absorbed by the roots of plants. The broken down organic substances serve as nutrients, which the plants used to grow and develop.

These three types of organisms work together in the ecosystem to maintain the balance of the ecosystem.  

3 0
3 years ago
How long does it take to make paper out of cow manure? I only need a direct answer please.​
Morgarella [4.7K]

Answer:

  a few hours to a few days

Explanation:

Reports that a process can exist do not mention the time involved.

In an industrial process, the length of time likely will be dominated by cleaning, bleaching, and drying times, which could be hours to days. Full-scale production would likely be more efficient if time is shorter. If "appropriate technology" is used, time could run to several days.

7 0
3 years ago
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How old is the earth​
Gnoma [55]

Answer:

4.543 billion years

Explanation:

4 0
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