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skad [1K]
3 years ago
14

Question from Campbell Biology Chapter 23:

Biology
1 answer:
user100 [1]3 years ago
6 0
The answer is <span>B) 0.25 </span>
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An _____ is a drug that mimics or increases a neurotransmitter's effects, whereas an _____ is a drug that blocks a neurotransmit
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Agonist/antagonist
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Antagonist are drugs that blocks a biologic response of a hormone or another drug. They usually have affinity to the receptors but has no efficacy. This drug will just inhibit the activation of the receptors by the aganist.
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How does the large intestine prepares wastes for elimination?<br><br>asap plz
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2 years ago
Read 2 more answers
1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub
boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.

4 0
3 years ago
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Ilia_Sergeevich [38]
The picture is not comming up
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Elevated carbon dioxide levels have been shown to contribute to the greenhouse effect, resulting in an increase in mean global t
andrew-mc [135]

Answer:

C

Explanation:

Ice-covered surfaces are highly reflective of the sun's rays therefore prevent those areas from warming as much as the areas where the ice is replaced with darker, less reflective surfaces which absorb heat and thus contribute more to global warming. Albedo is the percentage of radiation reflected by the earth's surface. Clear surfaces have greater albedo values than dark surfaces.

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