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3 years ago

Why would a red blood cell

Biology

1 answer:

Semmy [17]3 years ago

4 0

Answer:

RBC burst when placed in pure water , Ans C -The water rushes into the cell. Cell swells and burst.

Explanation:

This can be understand by understanding OSMOSIS

Movement of water molecule from its higher concentration to its lower concentration through a semipermeable membrane is called OSMOSIS.

If cell is placed in any solution in which solute concentration is higher than inside the cell (HYPERTONIC SOLUTION), means water content in cell is higher then outside environment. Then the water molecule will flow from cell to the outer medium. Water molecule movement continues till concentration of solutes reaches same both in cell as well as in medium.

IF cell is placed in any solution having solute concentration lower than inside the cell. In this solution water content will be higher and solute concentration will be low (HYPOTONIC SOLUTION). Water movement will be inside the cell from the outer environment. As the result Cell swells and ultimately burst because of excess water content.

IF cell is placed in ISOTONIC SOLUTION, where concentration is same both in cell and outer environment, No movement of water molecules takes place.

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Help for the brain thing and some points

Fiesta28 [93]

Answer:

I would guess the law of superposition

Explanation:

that law means that the bottom is the oldest

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2 years ago

Read 2 more answers

Ames adds some magnetic marbles to a glass jar full of ordinary marbles, and then shakes up the jar.

artcher [175]

Answer:

Magnetic marbles will tend to attract each other.

Explanation:

Magnetic marbles are composed of ferromagnetic materials, which indicates that they function as a magnet and have the ability to attract other objects formed by ferromagnetic materials. In this case, we can say that the magnetic marbles attract each other and inside a jar containing magnetic marbles and common balls, the magnetic marbles will tend to attract and group together.

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3 years ago

Which of the following is an example of an environment with a carrying capacity that has been overloaded?

svetoff [14.1K]

B because there are too many deer so they all can't have enough food so the die.

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3 years ago

Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check

Alenkasestr [34]

Accordin to Du Toit's list supporting the theory of continental drift, the correct options are A, C, ad D. Fossils of Glossopteris were discovered on Africa, Australia, and Antarctica.

--------------------------------

Before answering the question, let us first review some theoretical frameworks,

• The tectonic plates theory explains the movement of the different plates based on the crust movements.

• The continental drift theory explains how these movements have been taking place for millions of years.

Alfred Wegener was the first one to state the concept of continental drift.

He proposed that once all continents were together a single big continent named Pangea, and with time, they split and separated into many pieces.

The geologist Du Toit published in 1937 a list of 10 pieces of evidence that would support the theory of tectonic plates and continental drift.

Du Toit's list includes evidence of Gondwana glaciation, lithological and structural evidence, plates fitting together, and paleontological evidence.

Paleontological evidence

• Plant and animal fossils distribution suggests the existence of a big unique continent. When reconstructing the supercontinent, the areas where these fossils were found get together in the same supercontinental region.

• Glossopteris (fern) impressions are widely distributed in determined areas of Africa, South America, India, Australia and Antarctica.

• Terrestrial vertebrate fossils also support the theory. The presence of Triassic tetrapods in all continents suggests terrestrial corridors between landmasses.

Finding Glossopteris in Australia, India, South America, Antarctica and Africa suggests that continents were once together, and these species used to live in the same region.

With time, these continents diverged and got separated by the oceans. The region where Glossopteris used to live got divided.

The correct options are A, C, and D. Africa, Australia, Antarctica.

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You can learn more about Glossopteris at

brainly.com/question/984155

7 0

2 years ago

Fruit flies have a diploid number of 8 and have a diploid number of 32. In which case will crossing over have greater impact on

Dovator [93]

Answer:

Diploid cells are like daughter cells coming from a mother cell called a haploid cell. So the more daughter cells are born, the greater the chance of getting hybrids and creating more diversity on the genetic races existing. In this case, the answer would have to be honeybees.

Explanation:

7 0

3 years ago