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Helen [10]
3 years ago
7

Caffeine is also a what? A. Opioid B. Narcotic C. Barbiturate D. Psychoactive

Biology
1 answer:
Nady [450]3 years ago
5 0
The answer to this question is D: Psychoactive. It is the world's most widely consumed psychoactive drug.
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Define hydraphilic. which portion of the bilayer is hydrophilic?​
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What is the impact of our energy usage on the earth system ?
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Which correctly lists the three zones that further divide the open-ocean zone?
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Answer:

Deep zone, surface zone and transition zone.

Explanation:

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The zone stretches from the surface , to the middle and depth of 200 m.

The surface zone is the area where light penetrates most , the transition stretches from the surface zone downward, in this zone light penetrates bit not as much as surface zone and in the deep zone, it stretches from the transition zone downward to a depth of 200 meters and don't have enough light penetration compare to surface and transition.

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4 years ago
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Explain the meaning of tephra and how volcanic bombs, lapilli, and ash relate to tephra
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The fluid-mosaic model of the cell membrane suggests that the membrane is primarily composed of
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Explanation:

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3 years ago
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