Each cell is surrounded by a <u>membrane</u> that separates the interior of the cell from its surroundings.
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Oil Coal and Natural Gas are the fossil fuels the USA has the most reserves of. Given that only one of them is on the answers Coal is the correct answer.
It contracts on its own without input. The answer is C.
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Answer:
Each DNA strand is composed of nucleotides—units made up of a sugar (deoxyribose), a phosphate group, and a nitrogenous base. Each strand of DNA is a polynucleotide composed of units called nucleotides. A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base. Explanation:
Answer:
D
Explanation:
Insulin helps the body maintain a healthy blood sugar level. If left untreated, diabetes causes blood sugar levels to rise to dangerous levels.
