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hjlf
3 years ago
12

The vaccine for chickenpox is: select one:

Biology
1 answer:
Alexxandr [17]3 years ago
5 0
C. alive. The vaccine contains a live strain of varicella-zoster (chicken pox) virus which has been attenuated so that it will stimulates the immune system but does not cause any disease in healthy people.
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Help me with this 2 questions number 3 A and B i mark you as brainlist please
Roman55 [17]
3A- Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.

3B- Negative feedback loops are used to maintain homeostasis and achieve the set point within a system. Negative feedback loops are characterized by their ability to either increase or decrease a stimulus, inhibiting the ability of the stimulus to continue as it did prior to sensing of the receptor.

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8 0
3 years ago
Which pair are the correct base pairs in DNA?
velikii [3]

Explanation:

cytosine and adenine

adenine and uracil

the correct ones

3 0
2 years ago
The epithelial cells that line the gut have glucose–Na+ symport proteins that actively take up glucose from the lumen of the gut
laila [671]

Answer:

These cells already have glucose uniports in their plasma membrane.

Explanation:

These cells already have glucose uniports in their plasma membrane.

8 0
3 years ago
If a codon is mutated, say from GGU to CGU, is the same amino acid specified?
Mumz [18]
In the DNA structuring, there are four nitrogen bases involved that are combined in a structure containing diffrent bases. Each codon is unique to one another and represents another material. Since the two codons are not exactly the same, the answer is no.
6 0
3 years ago
Read 2 more answers
Describe the path taken by water molecules from the soil until it reaches a mesophyll cell of a leaf to be made into sugar
pychu [463]

Answer:

Water is taken up through the xylem until it reaches a leaf, where it diffuses out into the surrounding mesophyll cells. Water diffuses from the mesophyll cells to the surrounding intercellular air spaces as water vapour, and finally, out of the leaf through the stomata.

Explanation:

___________

4 0
3 years ago
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