Ques:Q: What does the base of a nucleotide within dna consist of? Choices: - ribosomes - protein - hydrogen - nitrogen A:

Ans:nitrogen
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Ques:Q: Our sun is on the main sequence, like most stars, and it is classified by what colorful name? Choices: - white dwarf - blue dwarf - red dwarf - yellow dwarf A:

Ans:yellow dwarf
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Ques:Q: When a male directly deposits sperm in a female during mating, this is considered what type of fertilization? Choices: - dual - mechanical - external - internal A:

Ans:internal
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Ques:Q: What is the ability of a material to return to its original shape after being stretched or compressed? Choices: - acidity - viscosity - solubility - elasticity A:

Ans:
elasticity
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