What are commonly called sea slugs and are actually marine gastropods with a greatly reduced shell?

A. Mollusks
B. Cephalopods
C. Oligochaetes
D. Nudibranchs
E. Chitons


Answer: D

Biology & Microbiology

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To remove noncoding sequences in the pre-mRNA of eukaryotes, multiple snRNPs combine with proteins to form a larger complex called the ___________ .  

A.  5' cap B.  introsome C.  ribosome D.  spliceosome E.  3' poly-A tail

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In the citric acid cycle, succinate is oxidized to form

A. fumarate. B. oxaloacetate. C. malate. D. succinate. E. citrate.

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Roundworms are more closely related to arthropods than to flatworms.

Answer the following statement true (T) or false (F)

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Which of the following is not part of the axial skeleton?

A. pelvic girdle B. ribs C. skull D. sternum E. vertebral column

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