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joja [24]
3 years ago
9

Which system sends messages to organs and tissues? excretory muscular nervous circulatory

Chemistry
1 answer:
vampirchik [111]3 years ago
5 0

Answer:

Hi friend, the answer to your question is <em>NERVOUS SYSTEM</em>.

Explanation:

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Prokaryotes are usually unicellular - and so would not have tissue, organs or organ systems.Some prokaryotes are multicellular, and you could potentially say that they are a tissue (many similar cells working together to perform a task). However, no prokaryotes have organs or organ systems.
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The correct answer is - A) The major constituents of air are gaseous elements.

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The air is indeed predominantly a mixture of gaseous elements. The most abundant gas in the air being the nitrogen with 78.9%, oxygen with 20.95%, argon 0.93%, and carbon dioxide 0.04%, with lesser amounts of other gases also be present in it. The water vapor is also present in the air, though it is variable, being around 1% at sea level, but only 0.4% over the entire atmosphere.

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