If your skin and the whites of your eyes appear yellow, what is not being excreted?

A. biocarbonate ion
B. carbonic acid
C. heme
D. globin chains
E. carbon dioxide


Answer: C

Biology & Microbiology

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Mature, living bone cells are called

a. osteoblasts. b. osteocytes. c. osteolytes. d. osteoclasts. e. osteopores.

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Which stage of photosynthesis, if any, can function in the dark?

A) Stage 1 (the light reactions) B) Stage 2 (the Calvin cycle) C) Both Stage 1 and Stage 2 D) Neither Stage 1 nor Stage 2

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Which piece of evidence would best support the theory of continental drift?

A. Fossils of seed ferns can only be found on North America and Europe but nowhere else in the world. B. Australia, South America, and Africa all share a similar mammalian fauna due to the lineage being present on Gondwana. C. The reptilian diversity on Earth is very different due to the separation of the continents billions of years ago. D. All of the choices are correct.

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What happens to the ovary after fertilization in angiosperms?

A. It becomes the fruit. B. It forms the seed coat. C. It becomes food for the embryo inside the seed. D. It dies.

Biology & Microbiology