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larisa [96]
2 years ago
15

How could research on mice or rats help answer our medical research questions — questions that are, after all, about humans?

Biology
1 answer:
GenaCL600 [577]2 years ago
4 0

Answer:

you could disect them or observe what they do by doing things like putting them in a maze or seeing what they do in front of a mirror.

Explanation:

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Which theory of water transport in xylem can also be used to explain the primary movement of water in nonvascular plants such as
I am Lyosha [343]

The correct answer is: A) cohesion-tension

Water movement in xylem of plants is passive process that is driven by pressure and chemical potential gradients. Xylem is plant tissue that transports water from roots to leaves. This upward water flow (against the force of gravity) through the xylem of plants is possible because of water properties.

Cohesion refers to cohesive force between water molecules which attracts them towards each other. As a result surface tension in liquid water occurs.

Tension is the result of transpiration. Negative pressure is generated by the evaporation of water from the leaves (transpiration).  

So, transpiration pull (via capillary action and the inherent surface tension of water) is responsible for water movement upwards.  

 

7 0
3 years ago
The EPA presented information concerning atmospheric greenhouse gases. In 2014, they estimated that there were 6,870 Million Met
vagabundo [1.1K]

The correct answer is B.) Anartic's tempurature will rise well above 0C.

4 0
3 years ago
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3. Below is a list of components that can make up a number of different systems:
Ber [7]
I chose cows , salmon , hawks. 
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6 0
3 years ago
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Which of the following is true? Group of answer choices In the brain, neurons are more abundant than neuroglia. An action potent
mr_godi [17]

Answer:

The true statements are:

An action potential never occurs in dendrites.

Norepinephrine is a monoamine.

Explanation:

In the following question only two statements are true that are; an action potential never occurs in dendrites as it occurs in nerves to send signals from cell body and axon and transmit it.

The second correct statement is Norepinephrine is a monoamine as these are particular neurotransmitters dopamine, serotonin, also known as catecholamines sometimes.

Thus, the correct answer is :

An action potential never occurs in dendrites.

Norepinephrine is a monoamine.

6 0
3 years ago
A pear plant with the genotype Aa can produce gametes containing:
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The answer is 1, either ( AA, Aa, or aa ) .
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