Answer:
Body systems are used throughout your body to help you move and to live like the heart for example.
1. RNA polymerase unzips DNA
2. Free RNA nucleotides pair with complementary DNA nucleotides
3. The mRNA molecule breaks away as the DNA strands rejoin.
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Answer:
The secretory portion is found in the dermis, the middle layer of the skin. Sometimes it's also found in the hypodermis, the deepest layer of our skin. The secretory portion of a sweat gland is a twisted and coiled tube that has an opening at its very top.
Explanation:
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Octopus<span> muscle fibers run in all directions; when contracted, they form a "skeletal" support system.</span>
