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Kryger [21]
3 years ago
11

Which definition is the best for “semipermeable membrane”? It is a barrier that prevents materials from moving from one side to

the other. It is a barrier that allows materials to move freely from one side to the other. It is a barrier with tiny openings that let some, but not all, materials pass through. It is a barrier that helps materials move from one side to the other.
Biology
2 answers:
WINSTONCH [101]3 years ago
6 0
A semipermeable membrane is a membrane that allows certain substances to pass through it. The most accurate definition is the third choice, "It is a barrier with tiny openings that let some, but not all, materials pass through." hope this helps:)
tigry1 [53]3 years ago
3 0

Answer:

Option C, It is a barrier with tiny openings that let some, but not all, materials pass through

Explanation:

A semipermeable membrane is a biological membrane that allows some substances to pass through it. Such type of membranes are also referred as selectively permeable membrane as they do not allow all substances to pass through it non-distinctively.

For example the cell membrane , wall of arteries, wall of intestine etc.  are semipermeable membrane.

Hence, option C is correct.

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Answer & explanation:

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Adaptive melanism occurs by the need to adapt to the environment, a condition that will be passed through the generations. This melanism allows animals to camouflage themselves during hunting or to hide from predators.

Industrial melanism is related to human interference, especially industrial activities, in the lives of animals (dark-colored moths are the best-known cases). Air contamination is one of the main factors for this condition.

There is also pseudo-melanism, which partially affects animals and is generally motivated by genetic mutations. In certain species, the characteristic spots and stripes appear larger and darker than usual. This type of melanism is very present in cats such as tigers, cheetahs, leopards. However, other animals can still be affected.

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3 years ago
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Luba_88 [7]
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jeka94

Answer:

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Explanation: hope this helps

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