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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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What are the strengths and limitations of this model?
Andrew [12]

Answer:

strengths are it's simple and easily understood and limitations is that it cant maintain simplicity if it's more descriptive

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3 years ago
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Diffusing molecules move ________ until they are ________. Through channels of active transport proteins; evenly distributed up
koban [17]

Answer;

-Down the concentration gradients; evenly distributed

Diffusing molecules move down the concentration gradients until they are evenly distributed.

Explanation;

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.

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3 years ago
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MrRissso [65]

The conclusion that can be draw from the data above concerning the carnivores and the herbivores is that the carnivores have shorter digestive system than the herbivores. That is option C.

<h3>What are carnivores and herbivores?</h3>

The carnivores are those animals that kill and feed on other smaller animals as their source of food while the herbivores are the animals that feed on plant and plant products.

From the data given above, the herbivores have longer digestive system but are less heavy in weight as when compared with the carnivores.

Also from the data given above, the carnivores have a shorter digestive system but with more weight than the herbivores.

Learn more about carnivores here:

brainly.com/question/24841795

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3 0
1 year ago
Which of the following enzymes are involved in coupled reactions in glycolysis? (Select all that apply.) Phosphoglycerate kinase
Len [333]

Answer:

Hexokinase, Phosphofructokinase, Phosphoglycerate kinase and Pyruvate kinase

Explanation:

Coupled reactions are reactions that require energy by one process and is supplied by another; where the energy is transferred from one side of the reaction to the other.

In glycolysis, four (4) reactions undergo coupled reactions

1. Reaction one: which is the phosphorylation of glucose to glucose-6-phosphate coupled to the hydrolysis of ATP to ADP and Pi catalyzed by hexokinase.

2. Reaction three: The phosphorylation of fructose-6-phosphate to fructose-1-6-bisphosphate and the hydrolysis of ATP, catalyzed by phosphofructokinase

3. Reaction seven: Phosphoglycerate kinase catalyzes the conversion of Bisphoglycerate to 3-phoshoglycerate and the production of ATP from ADP

4. Reaction ten: Pyruvate kinase catalyzes the conversion of enol phosphate to the enolic form of pyruvate with the synthesis of ATP.

8 0
3 years ago
The role of the excretory system is to rid the body of toxic waste products. Which of these body systems also plays a direct rol
hammer [34]

Answer:

The correct answer would be C) respiratory system.

Respiratory system is made up of set of organs which help in taking in oxygen and expelling out carbon dioxide from the body.

In humans, it is composed of nose, pharynx, larynx, trachea, bronchi, pair of lungs, and diaphragm.

Alveoli (in lungs) are the site of gaseous exchange where oxygen is exchange with carbon dioxide.

Carbon dioxide is the toxic waste product of cellular respiration. Circulatory system helps in transporting CO₂ from cells to the alveolar site where it is exchanged with oxygen and excreted out as a part of exhaled air.

5 0
3 years ago
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