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2 years ago

what is defined as the movement of water across a semipermeable membrane from high concentration to low concentration?

1 answer:

5 0

Osmosis is defined as the movement of water across a semipermeable membrane from high concentration to low concentration. This occurs when the surrounding environment of the cell has a higher water concentration than the cell itself. Osmosis is important in animal cells because it helps in the distribution of nutrients and the release of metabolic waste products. In plant cells, osmosis is responsible for the absorption of water from the soil and the elevation of the liquid into other parts of the plants.

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Which statement about stomata is true?

dedylja [7]

Answer:

stomata are tiny pores present on a surface of leave which helps in exchange of gases

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2 years ago

The question is the primary producer in this ecosystem is the -

disa [49]

Answer:

Its plant

Explanation:

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2 years ago

Answer all 20 and I can give you brainliest

ExtremeBDS [4]

Answer:

1.(D)

2.(D)

3.(C)

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14(C)

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Outside your Home.

So C?

17(C)

18(D)

19(B or A)

20(B)

Extra credit question

Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows

1.Earth is the only planet known where intelligent life exist.

2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.

3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.

4. Earth has Van Allen radiation belts which protects it from cosmic rays.

5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.

6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.

7. Tectonic plates of earth differentiates it from most other planets.

8. Earth has a solid crust unlike the gaseous planets.

9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.

Brainliest?

Explanation:

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2 years ago

while observing an elodea plant cell through a microscope a student noticed a small moving greendisk these organelles are most l

Drupady [299]

Answer: "photosynthesis" .
________________________________________________________
Note: These small, moving "green disks" seen while observing an Elodea plant cell—under a microscrope— are "chloroplasts". The "chloroplasts" are organelles that ar responsible for "photosynthesis" .
_________________________________________________________

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2 years ago

Why do all the stars in orion appear to us on earth as if they were near each other

N76 [4]

Answer:

Because of their brightness, how big they are, and how many their are

Explanation:

8 0

2 years ago