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alekssr [168]
3 years ago
13

The heart pumps blood through blood vessels to reach all areas of the body. together, the heart and blood vessels form a(n _____

_____.
Biology
1 answer:
WINSTONCH [101]3 years ago
4 0
Organ system is the correct answer
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Answer:

Answered below

Explanation:

Pepetidoglycans are the structural polymers which make up the cell walls of most bacteria.

It consists of the macromolecule, glycan chains, which are repeating N-acetylmuramic acid and N-acetylglucosamine residues. These glycan chains combine or cross-link with peptide side chains (proteins) to form a mesh-like layer outside the plasma membrane of most bacteria.

Peptidoglycan is the major structural component and the basic unit of the bacterial cell wall and provides protection to the cytoplasmic membrane, mechanical rigidity and also regulates the passage of fluid, amino acids, sugar and ions, in and out of the cell.

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Scientific ____ must be supported by observations and results from many investigations and are not absolute.
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Scientific methods must be supported by observations and results from many investigations and are not absolute.
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S_A_V [24]

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A

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Selective breeding takes a person and so does cloning

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