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Wittaler [7]
1 year ago
13

Close examination of an organ reveals a lining of several layers of cells. The layers do not contain any blood vessels and one s

urface of the cells is open to the internal cavity of the organ. This tissue is probably
Biology
1 answer:
Reptile [31]1 year ago
3 0

Answer:

Epithelium

Explanation:

Epithelium are tissue massage found mostly in the skin and serve as protective covering for the internal and external parts of the body.

A major characteristic of the epithelium is that its layers do not contain any blood vessels such as the artery or vein. The surface of the cells is also usually open to the internal cavity of the organ.

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The cyanobacteria were aerobic in nature and required oxygen to survive. They evolved the chloroplasts covered with an external protective membrane and an internal membrane. It is the internal membrane which contains all the necessary organelles or components necessary for photosynthesis like thyllakoids, stroma etc which helped them to utilize water as an electron donor during photosynthesis like all the eukaryotes.  

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