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ehidna [41]
3 years ago
5

Discuss the biological underpinnings of motivation including needs drives and homeostasis.

Biology
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

The process by which activities are initiated, coordinated and progress  to meet the physical or psychological needs of an individual  is known as  <u>Motivation</u>

Needs  the request for essential materials or resources which are  paramount for organisms survival and existence. examples of theses Materials are -water, air.

Drives:The possession of  basic needs by an organism, causes physiological and physical arousal that prompts the organism to behave in a such a way  to achieved these  basic needs thus  defusing  the tension.

The maintenance of relatively  constant internal environments of an organism is called Homeostasis. It is a natural compensatory mechanisms of  multi-cellular organisms which maintains fluctuations in  physiological mechanisms of the body.  

Explanation:

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3 years ago
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How do changes in nutrient levels affect the structure of aquatic food webs?
vodka [1.7K]

ANSWER:

The effects of increasing or decreasing the nutrient levels in an aquatic food webs is described in the explanation.

Explanation:

If the nutrient levels in an aquatic food web increase moderately then it will result in increased production of the primary producers and the consumers.

But if the nutrient levels are increased excessively, like in eutrophication, then the increased level of nutrients will result in overproduction of the consumers like fishes, etc. Hence, there will be a scarcity of resources like oxygen in the water to support them and this will lead to a decline in biodiversity of the aquatic food web.

If the nutrient levels are decreased, then there will be competition for resources among the species which will ultimately lead to the decline of some species from the aquatic food web.

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3 years ago
Lateral gene transfer between individuals of a species is called
adelina 88 [10]

Answer:

Horizontal gene transfer.

Explanation:

Horizontal gene transfer happens when an organism acquires a gene that benefits its development. This individual then can transfer this information to another cell without it being its breed or duplicate. Normal gene transfer happens "vertically" from a parent to a daughter cell, but in this case, duplication is not needed for another organism to acquire the gene.

6 0
3 years ago
Who is most in danger from the effects of overfishing ?
faltersainse [42]

I don't think we can answer this question just like that. The question should be formulated a bit differently:

WHAT is in danger from the effects of overfishing?


Well, in the end of the "effect-spectrum" we are in danger, since we also eat fish. But the most affected species are the ones that form the aquatic ecosystems. Such as fish. Examples:

1 - Many of the fish we eat, feed on sea-weed. If there aren't enough fish to eat the growing population of sea-weed, many fish die of intoxication.

2 - We don't have almost any fish restrictions in a way, because we can eat basically all of them. Therefore, many fish (which are also being eaten) find themselves in a lack of food.

3 - Many times, we concentrate on a specific species, which is a main cause of the extinction of species.



Hope it helped,



BioTeacher101


8 0
3 years ago
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Why was domesticating and confining animals so important to the food supply of early civilization
bulgar [2K]

Answer:

Image result for why was domesticating and confining animals so important to the food supply of early civilization

Throughout history, people have bred domesticated animals to promote certain traits. Domestic animals are chosen for their ability to breed in captivity and for their calm temperament. Their ability to resist disease and survive in difficult climates is also valuable.

Explanation:

Domestication of animals help the humans in many ways for eg; Cows and goats gave them milk and meat , Cattle also helped them in ploughing the fields also Cattle and sheep are kept for their wool, skins, mea,t and milk, large animals can also be used to do physical work like carrying things or plowing the field

7 0
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