Which group's members have both lungs and gills during their adult lives?
A) sharks, skates, and rays
B) lungfishes
C) lancelets
D) turtles
E) alligators
Answer: B
Biology & Microbiology
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When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the recipient,
a(n) ____________________ results. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
_______ is the most common neurotransmitter released by neurons controlling skeletal muscle contraction.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
In bacteria, transcription termination is partly controlled by?
a. the -10 and -35 sequences in the promoter b. hairpin loops in the RNA c. the polyA tail d. the translation start site
Biology & Microbiology
Fatty acid tails
What will be an ideal response?
Biology & Microbiology