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son4ous [18]
3 years ago
9

What is one of the most threatened ecosystems in the United States ?

Biology
2 answers:
Tomtit [17]3 years ago
6 0

Answer:

Caribbean coral reefs

Explanation:

and unfortunately many more :´(

vladimir1956 [14]3 years ago
4 0
The answer is the artic sea ice
I had the same question
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The root word “di” means “two,” so the word “diatomic” refers to _____.
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Answer: The answer is B. because diatomic means consisting of two atoms. Hope this helps :)

Explanation:

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3 years ago
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Why was the Euglena green in color? What is the name of the specialized body structure that is located at the base of the tail?
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Euglena is green in color because of the chlorophyll that is contained in the chloroplast of that organism and the body structure that is located at its base is known as flagellum .

Explanation:

Euglena are species that are found in the fresh and salt water. They are abundantly found in inland waters where they manage themselves to bloom in large amount and color the water surface of ditches and ponds green.

This green color which them form are mainly due to the chlorophyll that is contained in the chloroplast of the organism. chlorophyll is known to be the pigment that is responsible for the green color.It is the cause for the green color in this case too.

Euglena contains a specialized body structure which is located at the base of the tail by which it manages to move.

This specialized structure is known as Flagellum.

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3 years ago
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How do the liver and pancreas work together to maintain blood glucose levels at 4.5 mM?
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Answer:

By using the secretion of insulin and glucagon.

Explanation:

When the level of glucose in blood is high the pancreas secretes insulin that sends a negative feedback signal to the liver to absorb glucose. Synthesis of fats is initiated, glucose transported to the muscles and adipocytes for storage through glycogenolysis.

When the levels of glucose are too low in the blood, the pancreas secretes glucagon to initiate the breakdown of glycogen by the liver.

8 0
4 years ago
How much brighter is Proxima Centauri than the Sun? (Astronomy just doesn't show up)
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Answer:

It contains only about an eighth of our sun's mass. Faint red Proxima Centauri is only 3,100 Kelvin (5,100 degrees F or 2,800 C) in contrast to 5,778 K for our sun. So Proxima is 500 times less bright than our sun.

Explanation:

4 0
2 years ago
Which type of silicate mineral is quartz?
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3 years ago
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