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Ratling [72]
2 years ago
15

What is it called when a molecule uses energy to move across a semipermeable membrane?

Biology
2 answers:
Morgarella [4.7K]2 years ago
8 0
When molecules uses energy for transportation across the cell, then it is known as "Active Transport"

So, option B is your answer.

Hope this helps!
Mrac [35]2 years ago
6 0

Answer: Active Transport

Explanation:

The movement of the particles across membrane needs energy. Energy is required in the condition where there is a movement of particles from a lower concentration to higher concentration.

It requires cellular energy for the movement of the particles. The larger molecules needs energy to move across concentration gradient.

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Using the following biomass data determine which groups is most likely to represent the producers in an area
Vsevolod [243]

Answer:

The correct answer would be group D- 809 kg.

It can be explained with the help of pyramid of biomass.

Pyramid of biomass represents biomass or the amount of organic or living matter present at each trophic level in an ecosystem.

The amount of organic matter is usually expressed in grams per meter square (g/m²).

There are usually four trophic levels in the pyramid of biomass: primary producers, primary consumers, secondary consumers, and tertiary consumers.

Usually, the biomass decreases as we go up the trophical levels specially in  terrestrial ecosystem. Inverted pyramid can be observed in case of aquatic ecosystem (biomass of phytoplanktons is less than that of herbivores).

Here, maximum biomass (809 kg) belongs to the group D and hence, it would belong to primary producers.

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What is the best way to prevent information from being lost when working on an important document?
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3 years ago
Which of the following correctly describes the image below?
BartSMP [9]

Answer:

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7 0
2 years ago
Mutations can occur in the chromosomes of all types of cells. mutations that are passed on to offspring must occur in ?
Arturiano [62]
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Answer:

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7 0
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