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MArishka [77]
3 years ago
13

The major organ of the circulatory system, the heart

Biology
2 answers:
Lapatulllka [165]3 years ago
8 0
B) pumps blood throughout the body.
horsena [70]3 years ago
3 0
B. is the answer the hearts is a muscle that pumps the blood through you
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How do you think an environment and weather of a country can affect the population and people of a region
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Answer:

Greatly affect the population.

Explanation:

Environment and weather of a country greatly affect the population and people of a region because good environment with all resources and suitable weather attract people of other regions toward itself. If the location has plenty of water, vegetation, flat geography and food etc, the people settled in this location and increase occur in population whereas if the area doesn't have any natural resources so people migrate from that area.

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3 years ago
During protein synthesis, what part of RNA is removed?
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During protein synthesis,
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4 0
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50

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What term describes the release of the mature egg from the ovary?
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Explain why the structure of mitochondria and ribosomes was not well understood before the development of the electron microscop
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Both mitochondria and ribosome are so tiny structure, it can not be seen under light microscope. It needs more magnification to study the detail structure, hence electron microscope is best to use.

<h3>What is ribosome ?</h3>

Ribosomes are small membrane less organelles and are the sites of protein synthesis.

It is present in are found in both eukaryotic and prokaryotic cells.

Ribosomes can either be present alone or in groups in cytoplasm while some ribosomes are attached to the endoplasmic reticulum  called as rough endoplasmic reticulum.

These are composed of ribosomal protein and RNA, have two subunit larger and smaller subunit.

Learn more about ribosome, here:

brainly.com/question/241631

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