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fredd [130]
2 years ago
9

which of the following situations would result in increased oxygen diffusion from alveoli into blood A. increase in perfusion an

d decrease in ventilation B. increase in oxygen concentration of blood C. reduction in alveolar surface area D. reduction in residual volume in the lung
Biology
1 answer:
marshall27 [118]2 years ago
6 0

Answer:

dfiyafjkdfjkdjklb

Explanation:Bruh Bruh

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Area measuring 5 m² contains 50 earthworms what is the population density of the earth worms
Darina [25.2K]

The density of a population of living organisms is usually measured in individuals on one square km. In here we have 50 earthworms on an area of 5 square meters, thus we have 10 earthworms on every square meter. In order to get to the result we need to see first how many square meters there are in one square km. One square km has one thousand meters of length and one thousand meters of width so:

1,000 x 1,000 = 1,000,000 km²

Since we established that we have 10 earthworms on every one square meter, we just need to multiply the number of square meters with the amount of earthworms on every square meter:

1,000,000 x 10 = 10,000,000

So we have a density of 10 million earthworms per square km.

7 0
3 years ago
In a membrane, the________of the phospholipids in one monolayer face the________of the phospholipids in the other monolayer.
matrenka [14]

In a membrane, the tail of the phospholipids in one monolayer face the tail of the phospholipids in the other monolayer.

<h3>What is cell membrane?</h3>
  • The cell membrane is a biological membrane that separates and protects the inside of all cells from the outside environment.
  • It is also known as the plasma membrane (PM), cytoplasmic membrane or plasmalemma (extracellular space).
  • The cell membrane consists of a lipid bilayer, which is made up of two layers of phospholipids interwoven with cholesterol (a lipid component) to maintain  proper membrane fluidity  at different temperatures.
  • Furthermore, membranes are composed of membrane proteins, such as those that cannot be separated across the membrane and function as membrane transporters, and peripheral proteins that simply attach to the  outer membrane of the cell and function as membrane transporters. enzymes to help the cell interact with its environment.
  • The integrated glycolipids of the outer lipid layer perform a similar function.

To learn more about the membrane, refer to the following link:

brainly.com/question/1768729

#SPJ4

3 0
1 year ago
In the image (not to scale), which phase of the moon would you observe from the earth?
leonid [27]

Answer:

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Explanation:

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3 years ago
The part of the cell that is like your brain and gives instructions to the cell is
rewona [7]

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Within the cell body is a nucleus (2), which controls the cell's activities and contains the cell's genetic material. The axon looks like a long tail and transmits messages from the cell

Explanation:

4 0
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Click and drag each label to the accurately identify the components of the visceral baroreflex
QveST [7]

The right answers are on the attached image.


Baroreflex is a reflex triggered when a baroreceptor is stimulated. In the human body, baroreceptors are found in the carotid sinuses and the sinus of the aorta. These receptors are stimulated during changes in blood pressure. Baroreceptors are sensitive to the stretching of blood vessels.

As blood pressure rises, baroreceptors transmit nerve impulses to the vasomotor center of the medulla oblongata, which is then inhibited. This results in vasodilatation of the blood vessels to reduce blood pressure.

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