At which spinal segment does the spinal cord end, giving rise to the cauda equina?

A. T11-T12
B. T12-L1
C. L1-L2
D. L2-L3
E. L3-L4


Answer: C. L1-L2

Biology & Microbiology

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African sleeping sickness is caused by

A. Trypanosoma brucei gambiense. B. Giardia lamblia. C. Histoplasma capsulatum. D. Trypanosoma brucei rhodesiense. E. Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense both cause African sleeping sickness.

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The portion of a flower that receives the pollen is the

A. ovary. B. anther. C. stigma. D. style. E. sepal.

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In eukaryotes, transcription takes place in the ________ and translation takes place in the ________.

A. nucleoid, cytoplasm B. nucleus, nucleus C. cytoplasm, nucleus D. nucleus, cytoplasm E. cytoplasm, cytoplasm

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Which biomolecules are responsible for the brilliant coloring of anoxygenic phototrophs (e.g., some roseobacters are pink)?

a. carotenoids b. phycobiliproteins c. thylakoids d. chlorosomes

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