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Reika [66]
3 years ago
13

Part A Do you think three weeks (21 days) is enough time to observe all of the Moon’s phases? Why or why not?

Biology
1 answer:
AysviL [449]3 years ago
6 0

Answer:

No, I don't think so.

Explanation:

The reason is, in order to fully track the moon, you would need about 27 days because that is how long it take the moon to complete one full orbit around the Earth. However, if you don't think that you will need 27 days because some of the days there won't be a phase change then, that is up to you. Hope this helps.

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Describe the beneficial uses of bacterial toxins in medicine.
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The beneficial uses of bacterial toxins in medicine are more and more used lately. For example, Botulinum toxin is a toxic protein produced by the bacterium Clostridium botulinum which has paralytic effects (injection of this toxin into muscle relax specific muscles). Botulinum toxin accomplishes his effects on the neuromuscular junction where he prevents the release of the neurotransmitter acetylcholine (Ach). Utilization of this toxin is in the treatment of various muscle spasms. It is also used in the treatment of migraines. Diphtheria toxin is also one of the toxins used for medical purposes for the treatment of cutaneous and non-Hodgkin T-cell lymphomas. <span>Some bacterial toxins can be used in the treatment of tumours. For example, immunotoxin, which is protein made by fusion of modified antibody and toxin.The antibody binds to an antigen on the target cell, the toxin then enters via endocytosis and kills the cell. Commonly used bacterial toxins in immunotoxins are Diphtheria toxin and the Pseudomonas exotoxin.</span>
3 0
3 years ago
Which of the following best describes the function of DNA within a cell
d1i1m1o1n [39]

Answer:

is the blue print of the cell

Explanation:

it contains all of the genetic code to make the cell into it's functioning part

3 0
3 years ago
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True or False: A is the hanging wall and B is the foot wall.
Nadya [2.5K]

Answer:

False

Explanation:

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6 0
3 years ago
What molecule is the source of information for transcription.
Grace [21]

DNA is the molecule, which is the source of information for transcription.

• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.

• The RNA polymerase monitors the phenomenon of transcription.

• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.

Thus, the correct answer is DNA.

To know more about:

brainly.com/question/16512679

7 0
2 years ago
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5 0
3 years ago
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