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OverLord2011 [107]
4 years ago
6

What happens during m phase of the cell cycle

Biology
1 answer:
Ostrovityanka [42]4 years ago
5 0

Explanation:

During the mitotic (M) phase, the cell divides its copied DNA and cytoplasm to make two new cells. M phase involves two distinct division-related processes: mitosis and cytokinesis.

In mitosis, the nuclear DNA of the cell condenses into visible chromosomes and is pulled apart by the mitotic spindle, a specialized structure made out of microtubules. Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase metaphase, anaphase, and telophase. You can learn more about these stages in the video on mitosis.

In cytokinesis, the cytoplasm of the cell is split in two, making two new cells. Cytokinesis usually begins just as mitosis is ending, with a little overlap. Importantly, cytokinesis takes place differently in animal and plant cells.

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explain the differences between normal air circulation and how the air behaves when a temperature inversion occurs
dybincka [34]

Temperature inversion or thermal inversion is a phenomenon during which the temperature increase when there is an increase in the altitude. It is an uncommon process that happens in the troposphere-the layer of atmosphere closest to the earth.    

When there is an increase in temperature with altitude, that warm air acts as a blockage for the cool air near the surface of the earth. So this is just opposite to the normal behavior of the air, where it becomes cooler with an increase in altitude.

So how air circulation behaves during inversion?

So as we said that the cool air nearer to the earth will be blocked by a layer of warm air. This blockage will hinder the circulation of air upwards from the lower layers. Let’s see how:

• As we know that, warm air is less dense and more buyout than cool air and normally less dense warm air is close to the earth and cool air is in above layers. But when the process is reversed, this warm air acts like a blanket for the proper circulation of air. Due to this, many environmental pollutants which normally leave the earth during air circulation get trapped in our air.  

• The trapped environmental pollutants like nitrogen oxides and hydrocarbons get convert into harmful ozone that ultimately deteriorates the quality of air and causes problems like smog.

• The improper air circulation also causes suspension of the harmful gases near the earth instead of allowing them to leave the earth atmosphere. This ultimately causes air pollution.  

• When smoke will not rise, carbon dioxide will be build up in the atmosphere; this will cause greenhouse effect and global warming.

Therefore, air circulation behaves very different during temperature inversion process and poses hazardous effects on global climate.

Hope it helps! :)

4 0
3 years ago
What are some differences between the sheep brain and human brain
snow_lady [41]
Well, A humans brain is bigger than a Sheeps brain, And a human has more Ridges and Contours also, Hope this helps
5 0
3 years ago
Which of the following statements is true?
Anna35 [415]
The answer will probably be b
5 0
4 years ago
Please Answer This!!<br>(Explanation of how the answer came, also needed)​
emmasim [6.3K]

Answer:

The correct answer to 153 is "When a cricket player is running fast in pursuit of a ball in the field, intuitively, this motion requires the movement of the legs or the lower limbs of the human body. The lower limb contains 30 bones-namely the femur, patella, tibia, fibula, tarsal bones, metatarsal bones, and phalanges". The correct answer to 154 is "gliding joint-between zygapoheses of successive vertebrae"

4 0
3 years ago
Carbon – containing energy sources formed from the decomposing a prehistoric organism or called 
Anastaziya [24]

Answer:

Fossil fuels

explanation: Coal is one type of fossil fuel. This is a nonrenewable energy source whose extraction often damages the environment. Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy

:)

5 0
3 years ago
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