Ques:Q: What bodily function do the triceps help perform? Read this paragraph and choose the correct option from the provided answers: Pearson Scott Foresman. The biceps help contract the arm, while the triceps help extend the arm . Public Domain. Choices: - perform crunches - make a fist - lift the leg - extend the arm A:

Ans:extend the arm
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Ques:Q: What effect occurs when a population suddenly gets much smaller, due to natural disaster or other cause? Read this paragraph and choose the correct option from the provided answers: Bottleneck effect occurs when a population suddenly gets much smaller. This might happen because of a natural disaster such as a forest fire. By chance, allele frequencies of the survivors may be different from those of the original population. Choices: - convergence effect - limitation effect - extinction effect - bottleneck effect A:

Ans:bottleneck effect
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Ques:Q: What do you call the first cell of a new organism? Read this paragraph and choose the correct option from the provided answers: Cells divide repeatedly to produce an embryo. Previously the one-celled zygote (the first cell of a new organism) divided to make two cells (a). Each of the two cells divides to yield four cells (b), then the four cells divide to make eight cells (c), and so on. Through cell division, an entire embryo forms from one initial cell. Choices: - embryo - starter cell - egg - zygote A:

Ans:zygote
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Ques:Q: What is the ph level of neutral, pure water? Read this paragraph and choose the correct option from the provided answers: The ion concentration of neutral, pure water gives water a pH of 7 and sets the standard for defining acids and bases. Acids have a pH lower than 7, and bases have a pH higher than 7. Choices: - six and a half - five - six - seven A:

Ans:
seven
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