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adoni [48]
3 years ago
15

All of the following are TRUE regarding the fight-or-flight reaction, EXCEPTA.it is a relatively new human adaptation.B.it enabl

es our bodies to prepare quickly escape from an injury.C.it prepares our bodies to engage in a physical battle.D.it enables our bodies to prepare quickly escape from an injury and prepares ourbodies to engage in a physical battle
Biology
1 answer:
Assoli18 [71]3 years ago
8 0

Answer: A.it is a relatively new human adaptation.

Explanation:

Fight or flight response is a response shown by a human or animal body towards acute stress. It is a physiological reaction that occurs in response to the perceived attack, survival threat and attack. The animals or humans react to threats by the hormonal secretion from sympathetic nervous system. This prepared animals for fighting. The hormonal secretions like catecholamines, epinephrine and nonepinephrine helps in generation of response. Neurotransmitters dopamine, estrogen, testosteron e and cortisol affects how organisms react to the stress.

Fight-or-flight reaction is not a relatively new human adaptation but it is evolved as a survival mechanism which was also present in primitive human beings and mammals and helped them to react in the life-threatening situations.

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5 0
2 years ago
One reason native plants are declining is that the invasive plants absorb nitrogen from the soil about twice as fast (α = 2). Ho
Dmitry_Shevchenko [17]

Answer:

α = 0 if β= 0

Explanation:

If both species want to persist in the same environment and their niches are also over lapping then both of the co-efficient values should be equal. There are two possibilities on these values for persistence. One is that one should compromise to the change produced by the invasive specie and two is that the new specie should compromise if he wants to stay (<em><u>Assuming that there is no competition</u></em>). In this way their niches won't overlap to a greater extent and therefore better chances of survival for both.

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4 years ago
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3 years ago
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Nimfa-mama [501]
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3 years ago
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Answer:

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hope it helps

6 0
3 years ago
Read 2 more answers
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