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Olin [163]
3 years ago
14

You study a bacterium that grows in very low-nutrient aqueous environments. Which type of transport mechanism is required to del

iver nutrients from these environments where they are at lower concentration than inside the cell?
A. aquaporins
B. active transport
C. facilitated diffusion
D. passive diffusion
E. such bacteria cannot exist
Biology
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

B. active transport

Explanation:

When a substance is to be transported from the area of its lower concentration to the area of its higher concentration, energy is consumed. The process is called active transport as it uses energy to move molecules against the concentration gradient. Membrane transport proteins such as pumps are involved in this type of transport. Therefore, the given bacterium needs to use the process of active transport to absorb the nutrients from the surroundings.

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IceJOKER [234]

Answer:

To study the importance of the RNA telomer element, we can evaluate it by generating an in vitro state where all the purified components are included, organizing two groups, one of them will have an RNAase and the other will not, if it is observed that the telomeres extend to the component of the RNA, in the set where there is no RNAase, longer telomeres could be observed, if there were no influence of the RNA, the length in both groups would be the same

7 0
2 years ago
QUESTION 31 Chipmunk mitochondrial DNA was fingerprinted using the single primer amplified region technique (SPAR) and the PCR r
natima [27]

Answer:

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Explanation:

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6 0
2 years ago
Scientists developed the ________ model after their studies of the fossil record revealed that some species appear quite suddenl
tatuchka [14]

Answer:

Punctuated Equilibrium

Explanation:

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6 0
3 years ago
What type of disease transmission is most likely represented by the graph shown below?
yaroslaw [1]

Answer:

A. Person to person.

Explanation:

The graph shows that the disease spreads slowly at first, then rapidly, and slowly at the end. This pattern of transmission is most characteristic of a disease spread from one person to the next. When only one person has the disease, the rate of transmission is slow because that person may only meet a few others. But as the number of people with the disease increases, the number of meetings that spread the disease also increase. At this time, the disease can spread very rapidly. The disease spreads more slowly again when there are only a few people remaining that do not have the disease. With foodborne and airborne diseases, the rate of disease spread is most rapid when the disease first arises and the greatest number of possible victims are available. Graphs of foodborne and airborne transmission show the greatest rate of disease spread at the start of the outbreak.

FYI: This isn't my explanation this is the explanation the question gives! :)

3 0
3 years ago
Based on the data given, in what direction will the car accelerate? A. toward the left B. toward the right C. upward D. downward
Lera25 [3.4K]
As long as this is the same question asked previously, the car will move towards the right, because the forces pushing it in that direction are greater in total than the other forces.
5 0
3 years ago
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