Fins composed of a web of skin covering thin, bony spines are characteristic of

A) hagfishes.
B) ray-finned fishes.
C) lampreys.
D) lobe-finned fishes.
E) cartilaginous fishes.


B

Biology & Microbiology

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The atomic number is determined by the number of ____.?

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Which type of molecular assay has been developed to identify P. jirovecii?

a. Nucleic acid sequence-based amplification (NASBA) b. Strand displacement amplification (SDA) c. Transcription-mediated amplification (TMA) d. Real-time polymerase chain reaction (PCR)

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Biology & Microbiology