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ale4655 [162]
3 years ago
11

How far from Earth is the star Proxima Centauri

Biology
1 answer:
Lunna [17]3 years ago
4 0
4.243 light years hope this helps
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 Describe la ruta de sangre a través del corazón y tu cuerpo
gtnhenbr [62]
La sangre sale del corazón a través de la válvula pulmonar hacia la arteria pulmonar y hacia los pulmones. La sangre sale del corazón a través de la válvula aórtica, hacia la aorta y hacia el cuerpo. Este patrón se repite, lo que hace que la sangre fluya continuamente al corazón, los pulmones y el cuerp.o espero que esto te
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8 0
2 years ago
How do trees help reduce carbon dioxide in the atmosphere?
nikitadnepr [17]

Explanation:

Trees, like all plants, use the energy of sunlight to take carbon dioxide (CO2) from the air and water from the ground through the mechanism of photosynthesis. They release oxygen into the air during the process of turning it to wood.

and no- this is not copied :)

7 0
3 years ago
The population of the United States is aging.<br> O True<br> O False
Free_Kalibri [48]

Answer:

True

Explanation:

Hope this helps!!!!!

5 0
3 years ago
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PLS HELP ME AND BRAINLY I SWERE TO GOD IF YOU AWNSER THIS I WILL................................................................
Sauron [17]
Sorry to take up a answer but the picture is not in the correct format for brainly!!! Upload again so I can help.
6 0
2 years ago
When blood glucose levels decrease, in between meals, during fasting or from starvation, increased levels of ________ help to in
JulijaS [17]

Answer:

B. Glucagon

Explanation:

Glucagon is a pancreatic hormone, secreted by the alpha cells of islets of Langerhans. Whenever the blood glucose level falls, glucagon is released to increase the blood glucose levels. This function of glucagon is quite opposite to the function of insulin and hence both are antagonistic hormones. Insulin reduces the blood glucose where as glucagon increases the blood glucose.

Glucoagon is large polypeptide of 29 amino acids. Since it helps in increasing the blood glucose homeostatic levels it is called as hyperglycemic hormone. It does so by stimulating certain processes such as:

- Stimulating Glycogenolysis i.e breakdown of glycogen to release more glucose from liver.  

- Stimulating Gluconeogenesis i.e. synthesis of glucose from non-carbohydrate sources like proteins.

- Glucagon inhibits the process of glycogenesis i.e. synthesis of glycogen, the storage form of glucose.

7 0
3 years ago
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