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vesna_86 [32]
3 years ago
6

Which two questions exemplify the scientific attitude?

Biology
1 answer:
zepelin [54]3 years ago
8 0
Research study related physical and physics elements
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Epinephrine initiates a signal transduction pathways that produces cyclic AMP (cAMP) and leads to the breakdown of glycogen to g
vladimir1956 [14]

Answer:

The ability of caffeine to inhibit adenosine receptors, plays a very important role in heightened alertness and sleeplessness.

Explanation:

"<em><u>Caffeine</u></em>" (<em>1,3,7-trimethylxanthine</em>) is an alkaloid obtained from plants. It has a chemical formula of C8H10N4O2.

Caffeine is generally <em>hydrophillic</em> but sufficiently <em>lipophilic</em> to pass through all biological membranes and readily cross the blood-brain barrier.

Therefore can bind with the adenosine receptors. Due to the blocking of adenosine inhibitory effects through its receptors held by paraxanthine and caffeine, it indirectly affects the release of <u>norepinephrine, dopamine, acetylcholine, serotonin, glutamate</u> e.t.c.

The release of the above-mentioned hormones have a great impact on the heightened alertness of the body, especially <em>dopamine</em> and <em>serotonin</em>.

8 0
3 years ago
Which of the following is true about natural selection? ​
Anna007 [38]

The options for this question are:

- Requires genetic variation

- Results in descent with modification

- Involves differential reproductive success

- All of the above

Answer:

<u><em>The correct option is d) All of the above</em></u>

Explanation:

The theory of natural selection explains that genetic variations occur in organisms of a species. Those organisms which are better adapted to live in an environment are able to survive and pass on their characteristics to their offsprings, hence descent with modification. Through this phenomenon, evolution takes place with the passage of time. Natural selection favours survival of the fittest. Hence, all of the above statements are true.

3 0
3 years ago
Explain why animals living in a rain forest could not survive in the arctic.​
Archy [21]

Answer: They would not survive because they have already adapted to the humid environment of the rain forest and could not adapt fast enough to survive the frigid climate of the artic.

Explanation:

6 0
2 years ago
What is the only thing recycled during the ATP-ADP cycle? *
White raven [17]
Your answer would be Glusose
4 0
2 years ago
What kind of cell is a stomach cell?
Lady bird [3.3K]
Am pretty sure C or A but I think C
4 0
3 years ago
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