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Alexandra [31]
3 years ago
13

Which cell structure is thought to have arisen through an endosymbiosis in plant but not animal cells?

Biology
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer:

Chloroplast

Explanation:

Endosymbiosis theory explains the origin of chloroplast and mitochondria in the eukaryotic organisms.

When the pro-eukaryotes engulfed the blue-green algae or photosynthetic bacteria, these bacteria formed the symbiotic relationship with the pro-eukaryotes. These photosynthetic bacteria transformed into the chloroplast organelles of the eukaryotes which can capture the sunlight and use it in the synthesis of glucose molecules. These eukaryotic cells later formed the plant kingdom.

Thus, the chloroplast is the correct answer.

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Butoxors [25]

The plasma membrane of the sea urchin egg has receptor molecules that are specific for binding acrosomal proteins .

<h3>What is plasma membrane ?</h3>

Plasma membrane is the outermost covering of the body which selectively permits the entry and exit of different type of materials .

Thus ,it is also called as selectively permeable membrane.it also separates the inner and outer environment of the cell .

It also helps in the diffusion process .

<h3>What are sea urchins ?</h3>

Sea urchins belongs to the animalia kingdom , Echinodermata Phylum, and Echinoidea class . they are small marine animals .Sea urchins are spiny , globular .

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8 0
2 years ago
The exchange of oxygen between the blood and body cells is
Mamont248 [21]
 <span>internal respiration.

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7 0
4 years ago
What is the difference between the floodplain, meander, delta, and what ecosystem services do each provide?
natima [27]
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4 0
3 years ago
Which of these types of governmental structure essentially controls every aspect of citizens' lives?
dimulka [17.4K]

Answer;

-Totalitarianism

Explanation;

-Totalitarianism refers to a political system in which all authority is in the hands of the state. In a totalitarian society, all control of public and private life are government run.

-A totalitarian society is usually ruled by a dictator, and there is very little or no freedom. In totalitarianism, the government controls almost every aspect of life. For example, Hitler employed totalitarianism as a means to attempt to achieve an obedient nation that was his personal vision for the country.

8 0
3 years ago
A 10 N force and a 15 N force are acting on a box in opposite directions what edition force must be added to produce equilibrium
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Answer:

5N of force acting the same way as the 10N of force to make it 15N of force

Explanation:

5 0
3 years ago
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