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astraxan [27]
3 years ago
8

What is special about a prokaryotic cell?

Biology
1 answer:
AysviL [449]3 years ago
7 0
A prokaryotic cell is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
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Write an essay about roundgaint worm​
Leokris [45]
<h2>Roundworms are among the most <u>numerous creatures</u> on the planet.</h2>

  • Roundworms may survive for a lengthy time throughout the human gut. They can be dangerous as well as end up causing a variety of issues, including abdominal discomfort, fever, as well as <u>diarrhea</u>.
  • Roundworms have long, round bodies that vary throughout the size depending on the species.

Thus the response above is right.

Learn more about roundworm here:

brainly.com/question/23560105

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The chief motivating factor in both anorexia and bulimia is:
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An overwhelming urge to be thin
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Convection in the upper mantle
xz_007 [3.2K]

Answer:

D) movement of the tectonic plates.

Explanation:

Lets understand first what convection is. It refers to the process through which denser material sinks and less dense material rises. This is because less dense material is more buoyant than denser one.

The earth is composed of water, rocks and air and all these things lower their density when there occurs an increase in their temperature.

So what happens when convection occurs in the upper mantle of earth, it raises the less dense material called magma  in uprising direction, because of the extreme heat in the Earth’s core. When molten lava moves upwards it moves in a fashion of convection, but then it cools down and sinks again.

As the earth surface is made up of tectonic plates. Scientists believe that when convection occur in mantle layer, it causes the movement of plates, This movement can be away from, or towards each other. The movement of tectonic plates causes shifts continents, ocean basins, earthquakes and pushes up mountains.


So D is best option.

Hope it helps!



8 0
3 years ago
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How will you describe the sequence of oxygen carbon dioxide and blood flow?
Firlakuza [10]
As we inhale air, oxygen enters the respiratory system and the circulatory system to transport it to the other parts of the body and to all cells. As the oxygen is already transported, the blood becomes deoxygenated and carries a CO2 which returns to the lungs and then we exhale the carbon dioxide.
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What problem did scientists have with getting podophyllotoxin from the Himalayan mayapple for cancer treatment?
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The Himalayan mayapple<span> is not an easy plant to </span>get<span> hold of. Yet we humans keep trying, because the poisonous plant also naturally produces </span>podophyllotoxin<span>, a preliminary compound in etoposide—classed as an essential medicine by the World Health Organization (WHO)</span>
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