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alina1380 [7]
3 years ago
8

Which neurotransmitter plays a role in reinforcement and addiction?

Biology
1 answer:
marishachu [46]3 years ago
6 0
Dopamine (DOP) is the "pleasure" neurotransmitter involved in addiction and positive reinforcement.
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Many farmers select their cattle for breeding, but some farmers allow natural breeding to occur. The Jersey sire on this farm wa
ycow [4]
<span>2) higher genetic variation among the offspring</span>
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3 years ago
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Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to whi
barxatty [35]

Answer:

The correct answer is a. Reduction in species diversity

Explanation:

In habitat fragmentation, the large area of forest is divided into many smaller patches which reduce the area of habitat for species live there. This Fragmentation of habitat occurs mainly due to human activities like making highways and roads in the area.

This separates species member from each other which reduces the gene flow between that which can lead to inbreeding depression in a species and extinction of species can occur.  

Cutting trees and human activities can alter the environment negatively which can cause extinction of some species that reduce species diversity. So the correct answer is a.

3 0
3 years ago
The desert sand dunes seen here are created through the processes of ___________ and ____________. A) wind and water. B) erosion
Agata [3.3K]

Answer:

C) Weathering and erosion

Explanation:

The completed sentence will be as follows -

The deserts and dunes seen here are created through the process of Weathering and Erosion.

Weathering is defined as the process of breakdown of rocks, soil and minerals into small particles under the influence of atmosphere, water and also biological organisms to some extent. The products of weathering are found at same place as the original rock with little or no movement.

In erosion, the materials such as rocks and soil or dissolved materials are transported from one place to the another place by the action of wind or water flow. So, here displacement of substances takes place.

8 0
3 years ago
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Gala2k [10]

Answer:

I think it is B

Explanation:

Im sorry if i am wrong

5 0
3 years ago
What did most people believe before
lozanna [386]

Answer:

C. Each species was unchanged since the moment of its creation

Explanation:

7 0
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