Photosynthesis uses sunlight to convert water and carbon dioxide into
a) oxygen.
b) high-energy sugars and starches.
c) ATP and oxygen.
d) oxygen and high-energy sugars and starches.
Ans: d) oxygen and high-energy sugars and starches.
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The valence number is the
A. atomic weight. B. number of neutrons. C. number of electrons in the innermost orbital. D. number of electrons in the outermost orbital. E. number of protons.
There is NO convincing fossil evidence for which of
the following? a. evolution b. extinction c. change d. catastrophism e. uniformitarianism
In not more than three sentences, explain why a plant placed in a window grows toward the light. What will be an ideal response?
Which of the following statements regarding meiosis is most accurate?
A) Crossing over occurs during metaphase I. B) A diploid cell produces haploid daughter cells. C) Haploid cells produce diploid cells. D) Homologous (non-sister) chromatids separate during anaphase II. E) Meiosis has the same number of stages as mitosis.