Some bacteria can use sulfur instead of oxygen as a final electron acceptor. What would they produce during anaerobic respiration?

A. O2
B. S2
C. H2O
D. H2S


D. H2S

Biology & Microbiology

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The Panamanian golden frog is in decline from what specific threat?

A. a virus B. a fungus C. an introduced competitor D. a new road E. overharvesting

Biology & Microbiology

What is a small circular piece of DNA that carries a few genes called?

a. Pili b. Flagella c. Ribosome d. Plasmid e. Cilia

Biology & Microbiology

__________ is the arrival of pollen grains on a receptive stigma. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Russian nesting dolls, which are a set of smaller dolls packed inside larger dolls, most resemble which one of the following developmental theories?

A) epigenesis B) preformation C) cell differentiation D) morphogenesis E) cell theory

Biology & Microbiology