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Gemiola [76]
3 years ago
12

Are substances able to travel against their concentration gradient

Biology
1 answer:
wlad13 [49]3 years ago
7 0
Yes. This is active transportation, which means it needs ATP to travel low to high concentrations. An example is the Sodium-Potassium pump
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A protein that spans the phospholipid bilayer one or more times is
Leona [35]

Answer:

a transmembrane protein

Explanation:

A transmembrane protein spans the phospholipid bilayer one or more times. they are made of amphiphilic phospholipids: phospholipids with a hydrophilic phosphate head and a hydrophobic tail with two fatty acid chains.

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3 years ago
If a lake where bacteria reside were to freeze, bacteria could survive by __________.
Lynna [10]
There are bacteria, like the Pseudomonas fluorescens and Marimonas protea, that can reside even in frozen surfaces. They do it by entering a dormant state where they wait patiently to be free from ice and grow again. 

Bacterial adaptation to cold surroundings also involves changes in their membrane composition and translation and transcription machinery. This includes bacterial conjugation. 

The answer is A.


6 0
3 years ago
If 2 identical forces act on 2 different sized objects, the larger object will______ the smaller object.
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It would accelerate less because it has a greater mass and it would require more force to move a more massive object.
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3 years ago
A muscle that is being regularly contracted during exercise will attract blood flow by dilating arterioles. which of these facto
maria [59]
Increased levels of carbon dioxide
3 0
2 years ago
A female rhesus monkey is exposed to testosterone in utero. As a result, the animal displays some defeminized behaviors as an ad
professor190 [17]

Answer:

organizational effect.

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Organizational effects act during development, often during critical period. Such hormones affect the construction or fine-tuning of sex organs or neural circuits underlying behavioral capacities that will be needed in adulthood.

Organizational effects are often under tight genetic control, and not subject to major influence by environment.

Organizational effects are often irreversible.

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3 years ago
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