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Vilka [71]
2 years ago
8

The concept presented to explain the origin of eukaryotic cells, namely that a bacterial cell parasitized another descendant cel

l of the last common ancestor and eventually became a permanent part of that cell as its mitochodrion or chloroplast, is called
Biology
1 answer:
son4ous [18]2 years ago
5 0

The concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.

<h3>What is the endosymbiotic theory?</h3>

The endosymbiotic theory is a well-sustained theory in biology about the origin of eukaryotic cells.

According to this theory, eukaryotic cells emerged by endosymbiosis between primitive eukaryotic cells and bacteria that converted into mitochondria and chloroplast organelles.

The endosymbiotic theory is well sustained in several scientific observations such as the existence of DNA in mitochondria and chloroplasts that is independent of nuclear DNA, the size of ribosomal units, etc.

In conclusion, the concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.

Learn more about endosymbiosis here:

brainly.com/question/1698852

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How do neurons work?
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A neuron (also known as nerve cell) is an electrically excitable cell that takes up, processes and transmits information through electrical and chemical signals. It is one of the basic elements of the nervous system. In order that a human being can react to his environment, neurons transport stimuli.

4 0
3 years ago
What sorts of living things are made up of prokaryotic cells? Find two specific examples online and tell me a little about them,
WITCHER [35]

Answer:Prokaryotic cells make up the organisms found in the two Kingdoms of life known as Bacteria and Archaea.

there are cells without a nucleus, which are called prokaryotes. They are a group of organisms which lack a cell nucleus. The organisms with this type of cell are called prokaryotic organisms or prokaryotes. These organisms were the first to be found in the planet Earth.

A prokaryotic cell is mostly composed of a plasma membrane, cell wall, cytoplasm, genetic material in the nucleoid and ribosome. They are single-celled and are much smaller compared to eukaryotic cells. They exist in different shapes including spherical, rod, flat, coccus, spirochete, and some are also shapeless, not having a consistent shape.

Explanation:

4 0
3 years ago
Distinguish between a waxing moon and<br> a waning moon.
Dmitrij [34]

Answer:

Waning is the opposite, or decreasing after a full moon, and is always illuminated on the left. Then, there is a waxing or waning Gibbous moon, which means more than half of the moon is illuminated. Waxing means to increase/get bigger, and waning means to decrease/get smaller.

5 0
3 years ago
The diagram shows the sun’s interior. Convection currents are present in the convection zone.
alekssr [168]

Answer:

A i think not sure..

Explanation:

3 0
3 years ago
Read 2 more answers
When blood glucose levels rise, the hormone ___ is released from the ___ to convert excess glucose into glycogen, a short-term e
Mariana [72]

Answer:

insulin; pancreas.

Explanation:

An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.

Basically, the endocrine system contributes significantly to the state of homeostasis in the body.

Homeostasis can be defined as a process through which a living organism maintains a steady or stable physical, internal and chemical environment that is ideal to enhance life and proper functionality.

Generally, when the blood glucose levels of a person rise, through an endocrine system, the hormone known as insulin is released from the pancreas to convert excess glucose into glycogen, which is typically a short-term energy storage molecule for the body.

In conclusion, the endocrine system maintain homeostasis by releasing insulin from the pancreas to decrease blood sugar and releasing glucagon to increase blood sugar.

6 0
3 years ago
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