Answer:
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation:
Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.
Answer:
cellular respiration because glucose is metabolized with oxygen to form carbon dioxide energy and water
Rattlesnakes, and all snakes, are multicellular.
_________________________________________
The benefits are the reproduction of organisms
