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erma4kov [3.2K]
2 years ago
7

What happens when a cell needs energy?

Biology
1 answer:
guajiro [1.7K]2 years ago
4 0
When a cell needs energy it gets from the food that we eat and works like as usual.
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Local and global winds are set in motion by air moving in convection cells. Describe the motion of air in a convection cell. Be
IrinaVladis [17]

Answer:

Due to the earth spherical shape, different latitudes of the planet receive varying solar energy levels from the sun. This is due to the differences in how the sun rays hit the earth surfaces and differences in the length of atmosphere the rays have to travel before they reach the earth's surface.

The equatorial regions get the most energy levels from the sun hence their atmosphere gets heated faster and the hottest. The air mass in this latitude, therefore, gets less fast dense  and begins to rise. The cooler and denser air mass from the poles rushes in, through the  lower atmosphere, to replace the void of the rising air.

When this air mass also gets heated, it too begins to rise. Remember the initial air mass cooled as it rose into the upper atmosphere. This now makes it denser than the air mas below it. As the hotter air mass begins to rise from below it pushes the cooler air mass above laterally. After the lateral movement, the air mass begins to sink slowly as it moves towards the poles because the incoming air mass gets denser than the local air mass.

The lateral movement of the convection current moving to the north is deflected to the north-west due to the Coriolis effect of the earth rotation while the lateral movement of the convection current moving south is deflected to the south-west. These pockets of convection currents are called Hadley cells.

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brainly.com/question/2160034

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8 0
2 years ago
The nucleus is primarily stores most of the cell's *
Ganezh [65]

<u>Answer</u>:

The nucleus is primarily stores most of the cell's DNA.

<u>Explanation</u>:

It is made up of two chains which coils around each other, together they form a helical structure tat further carries the genetic information, which will help in the development, functioning and also the growth and reproduction in all known organism and in viruses. The nucleus is stored in it and the nucleus has the genetic material. They are composed of the nucleotides, in which each nucleotide has four nitrogen. These nucleotides are together joined with covalent bond to each other. Together they have the biological information.    

4 0
3 years ago
Oxygen was initially created in Earth's atmosphere by _____.
Evgen [1.6K]
Oxygen was initially created in Earth's atmosphere by algaes. It is estimated that marine plants produce between 70 and 80 percent of the oxygen in the atmosphere. Nearly all marine plants are single celled, photosynthetic algae. Hope this answers the question.
3 0
3 years ago
Read 2 more answers
The volume of a gas is ______.
gulaghasi [49]
Equal to the volume of its container.
4 0
3 years ago
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When the distance between the balls decreases, the size of the arrows increases. This shows that the gravitational pull
shepuryov [24]

True

Explanation:

The statement that when the distance between the balls decreases, the size of arrow increases because it shows the gravitational pull between the two balls which increases is true.

According to Newton's law of universal gravitation:

 "The gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of their separation".

Mathematically, the law is written as:

                     F = \frac{G m_{1} m_{2} }{r^{2} }

F is the gravitational force

 G is the universal gravitational constant

  m is the mass of the body

  r is the distances between them.

We see that the less the distance between the two bodies the more the gravitational force they have.

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8 0
3 years ago
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