Answer:
<u>A chemical bond between the phosphate group of one nucleotide and the sugar of a neighboring nucleotide holds the backbone together. Chemical bonds (hydrogen bonds) between the bases that are across from one another hold the two strands of the double helix together.</u>
Explanation:
Answer:
implantation – the process by which the zygote attaches to the uterine wall.
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The answer is : Your feet
Answer:
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Explanation:
Epithelial tissue covers the body, lins internal surfaces, and forms glands.
