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eimsori [14]
3 years ago
14

Help! Will give brainlist

Biology
1 answer:
irinina [24]3 years ago
6 0
Answer: B

Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
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Does the dna backbone have covalent or hydrogen bond? WILL GIVE BRAINLIEST ANSWER
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sorry  i don't know

Explanation:

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3 years ago
Cardiovascular disease and ________ account for approximately 29% of U.S. a. deaths each year. b. stroke lung cancer c. leukemia
emmasim [6.3K]

Answer: diabetes mellitus

Explanation:

This is a disease condition associated with elevated blood glucose levels.

It is due to abnormalities of the Pancreas. The pancreas coordinates two hormones INSULIN AND GLUCAGON in its cells.

INSULIN converts excess sugar to GLYCOGEN while GLUCAGON breaks down GLYCOGEN to sugar when blood glucose/glucose levels drops.

If the pancreas beta-cells of glucose are faulty, INSULIN fails to converts excess glucose to glycogen; therefore glucose builds up in the blood plasma,and failed to enter the needed cells. Large amount of glucose is wasted in urine.This is diabetes Mellitus.

The two types of diabetes are:

Type 1 and Type 2.

3 0
3 years ago
2. In 2012 some Harvard graduates were asked a simple question: Where does a plant get
Crank

Answer:

The mass of a tree is primarily carbon.

Explanation:

The carbon comes from carbon dioxide used during photosynthesis.

5 0
3 years ago
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Which of these pairs is in Kingdom Fungi?
Vadim26 [7]
The answer is C.mushrooms and yeast<span>
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3 0
3 years ago
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Whether there is a net flow of fluid into or out of a capillary at a given spot along its length depends on _____.whether or not
castortr0y [4]

Answer: Depends on the balance between blood pressure and osmotic pressure.

Explanation:

The capillaries are part of the microcirculation that transports nutrients to the tissues and removes cell excreta. The walls of the capillaries are extremely thin, constructed of single - layer, highly permeable endothelial cells. Therefore, water, cell nutrients and cell excreta can all interchange quickly and easily between the tissues and the circulating blood.

The tissues of the body is made up of soo many capillaries which helps to deliver blood and it's contents to it. The hydrostatic pressure in the capillaries tends to force fluid and it's dissolved substances through the capillary pores into the interstitial spaces. Conversely, osmotic pressure caused by the plasma proteins( called COLLOID OSMOTIC PRESSURE) tends to cause fluid movement by osmosis from the interstitial spaces into the blood. This osmotic pressure excreted by the plasma proteins normally prevents significant loss of fluid volume from the blood into the interstitial spaces.

Therefore, a balance between hydrostatic pressure in the capillaries which is influenced by blood pressure and osmotic pressure in order for a net flow of fluid into or out of a capillary to occur.

7 0
2 years ago
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