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Rom4ik [11]
3 years ago
8

A cell membrane is very specific about what it allows across how much does this help the cell

Biology
2 answers:
Lostsunrise [7]3 years ago
7 0

Answer:

Transport proteins allows only enzymes to pass through the membrane

Explanation:

givi [52]3 years ago
4 0

Answer:

It is the better for the cell if most molecules are prevented from entering.

Explanation:

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please help me with this does anyone know any of these please give helpful answers I need help with hw Please I'm in a hurry!!!!
Phoenix [80]
Number 1: The Circulatory System is a vast network that contains organs and vessels.

number 2: Arteries have a thick wall which helps a powerful pressure from the heart.

number 3: Without the Circulatory System the body wouldn't be unable to maintain a internal environment.

number 4: The Circulatory and Respiratory system both have gas to help a or animal live in there internal environment.

number 5: Blood vessels brings oxygen to the tissues and absorbs carbon dioxide and other waste products to clear the lungs. And with out oxygen the tissues won't absorb carbon dioxide to clear out the lungs.

number 6: D
3 0
3 years ago
At the end of which period did nearly three quarters of all species of life on earth go extinct in a very short time interval Ca
Ostrovityanka [42]

It's the cretaceous time period.

7 0
3 years ago
How is a lunar eclipse and a solar eclipse different
brilliants [131]
<span>A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun. </span>
7 0
3 years ago
Read 2 more answers
What is the difference between a food chain and food web?
Delvig [45]

Answer:

D

Explanation:

There are many food chains within a food web, so D seems like the best possible answer :)

7 0
2 years ago
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A high fever causes an enzyme to lose its three dimensional structure and function. which bonds are broken when a protein denatu
marta [7]
The appropriate response is hydrogen bonds. Fever is an adjust of gainful and destructive impacts. High fevers can have a tendency to skew the adjust toward the destructive. 
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