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AnnZ [28]
2 years ago
11

What does a cell have to do to move a substance from an area of low concentration to an area with high concentration

Biology
1 answer:
Salsk061 [2.6K]2 years ago
4 0

Answer:

The cell has to undergo a process called Osmosis

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Match the descriptions of the stages of the act of hearing with the correct stage order.
Nana76 [90]
Stage 1 - <span>The ear collects compression waves.
Stage 2 - </span>The ear amplifies the compression waves.
Stage 3 - <span>The amplified waves stimulate the hair cells of the ear.
Stage 4 - </span><span>The hair cells transmit nerve impulses to the brain
Stage 5 -</span><span>The brain interprets the nerve impulses.


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3 0
3 years ago
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Ampicillin is an antibiotic that kills bacterial cells by disrupting the formation of cell walls. However, the pARA-R plasmid ha
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Explanation:

Research shows that plasmid DNA is only taken in by small percentage of bacteria in a large population.

Therefore, the need of growing transformed bacteria in the presence of ampicillin is very important. The main reason of this process is to kill off or eliminate bacteria that have failed to take in the plasmid, due to their possession of recombinant DNA plasmid pARA-R (an ampicillin resistance gene), that allows them to survive.

However, after completion of the aforementioned procedure, the bacteria that have been transformed will be able to take in the plasmid.

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3 years ago
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In your laboratory, you examine a vial of freshwater from a local pond. You notice several unfamiliar small (less than 1 millime
goblinko [34]

Answer:

First, we will see its body structure and collect more information about it. Second , we will see the mode of reproduction i. e. sexually or asexually.

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7 0
3 years ago
You observe a cell that has both a nucleus and a cell wall. Therefore, you conclude that it must be
Rina8888 [55]

Answer:

Plant

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Plant cells contain cell walls made of cellulose, although there are cell walls too in fungi and in bacteria (not all).

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Determined the quantity of work done when a crane lifts a 100-n block from 2m above the ground to 6 m above the ground
andriy [413]
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