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Jobisdone [24]
3 years ago
7

(85 POINTS!) A nerve signal is like a wave. How does this work?

Biology
1 answer:
Ray Of Light [21]3 years ago
3 0

The answer is B,trust me I took the test.GOOD LUCK


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How does fertilization occur?
Ludmilka [50]

Answer:

what

Explanation:

6 0
3 years ago
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How is the phloem in a leaf related to the roots of the plant?
wel

Answer:

The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called 'sieve-tube members' and 'companion cells'.

6 0
2 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
Alina [70]

Answer: Option B) phosphate; hydroxyl; 3'

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the phosphate group attached to the 5' carbon atom of the sugar portion of a nucleotide and the hydroxyl group attached to the 3'

carbon atom

Explanation:

For both RNA and DNA, chemical groups such as phosphate (PO3-) attaches to the 5' carbon of the pentose sugar (deoxyribose in DNA, ribose in RNA).

While hydroxyl group (OH) attaches to the 3' carbon atom of the pentose sugar.

Thus, a nucleic acid structure structure reveals a several repeating units of nucleotides where nitrogenous base links to a pentose sugar, who in turns is linked to phosphate group

5 0
3 years ago
10. A fish is characterized by the presence of
egoroff_w [7]

Answer:

d

Explanation:

Fishes are aquatic vertebrates having scales, pharyngeal gill slits and paired fins. ... Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change. fishes have scales that covers the skin of fishes. Thus, the correct answer is option D.

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3 years ago
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Energy storing molecule
Semenov [28]

Answer:

ATP

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