1. to ensure continuity and preservation of genetic material.
2.semi conservative
3.a DNA polymerase : unzip the DNA strand.
b Helicase : unwind dna strand
4.during the s stage of interphase
5. Nucleus
Striped, one nucleus and smaller than skeletal muscles.
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Neurological - by nerves
Endocrinological - by blood and secrets
Answer:
B, Isotonic solution
Explanation:
In an isotonic solution, the flow of water in and out of the cell is happening at the same rate.
In general, yes, the dorsal blood vessel of a worm be seen from the worm's exterior because a worm's "skin" is very thin. Although of course there are exceptions.