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8090 [49]
2 years ago
6

A deletion mutation occurs when a base is _____.

Biology
2 answers:
Morgarella [4.7K]2 years ago
8 0

Answer:

b

Explanation:

i took the test.

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s

Sever21 [200]2 years ago
6 0

Explanation:

A deletion mutation occurs when a base is ___

B. multiplied

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A species with narrow niches that can survive in a small range of environmental conditions are
Ugo [173]

Answer:

D. Specialist Species

<h2>What is the advantage for species to be specialists, and how can they survive in the presence of opportunistic/generalist species?</h2>

In the setting of specialized habitats or unique situations, specialized species exist. When those conditions and surroundings change, they must adapt or go extinct, thus they must survive while they still exist.

When compared to generalists, they have the benefit of efficiency, which increases the likelihood of survival and, hence, reproduction within certain settings or situations. The generalists, on the other hand, have the benefit of being able to survive in a larger variety of circumstances and have a higher probability of doing so.

Cactuses, which are plants adapted to dry environments, are an example of specialization. More generalist plant species would typically outcompete cacti in most habitats on Earth, but very few of such species could endure the harsh conditions of a desert.

Extreme environmental conditions, competition for limited resources, and "evolutionary arms races" are some of the pressures that cause specialization. Cheetahs sprint quickly both because their prey moves quickly and because quicker cheetahs will be more effective hunters and more likely to procreate. The advantage of specialization is clear when seen from the standpoint of catching the next meal on a daily basis.

My key argument is that specialization's benefits must always be viewed in the context of the environment that generated the selective pressure that resulted in specialization. Although experts are specialists because they must be, their specializations put them in danger.

4 0
1 year ago
____ first investigated the neural components regulating the brain's sleep-wake mechanisms in 1949
coldgirl [10]
The answer is Walter Hess

Hess manipulated the diancephalon of the brain of cats by inserting metal rods in the hypothalamus regions of the brain, where the diencephalon is located, and passing electrical current through the rods to the brain region. He noticed that the cats, among other complex behavioral changes, would curl up and sleep. 
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2 years ago
________ is the main form in which carbon dioxide is carried in the blood.
V125BC [204]

Carbon dioxide is transported in the blood in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Source: https://academic.oup.com/bjaed/article/5/6/207/331369

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3 years ago
She always prepared food.(Yes/No question)​
Maurinko [17]

Answer:

<h3>Yes</h3>

She always prepared food.

7 0
1 year ago
After the two avian kidneys do their work, a bird will excrete nitrogenous waste known as _____________ from the blood.
Ludmilka [50]

The avian kidneys are divided into units called lobules and as the two avian kidneys of birds do their work or function, most of these birds excrete nitrogenous waste known as uric acid from the blood, which reduces water loss but requires more metabolic energy to produce nitrogenous waste.

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3 years ago
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