________ discovered that soil bacteria could oxidize iron, sulfur, and ammonia to obtain energy.

Fill in the blank(s) with the appropriate word(s).


Winogradsky

Biology & Microbiology

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A virus that kills its host is said to be

A) lytic or virulent. B) temperate. C) lysogenic. D) virulent or lysogenic, but not temperate.

Biology & Microbiology

Which of the following statements is true concerning euglenids?

A. Some euglenids are pathogenic to humans. B. Most have a cell wall. C. The storage polysaccharide in euglenoids is NOT paramylon. D. In the euglenoids, Rubisco (enzyme) is NOT involved in photosynthesis E. All of the above is CORRECT.

Biology & Microbiology

What forces filtration at the glomerular capsule?

a) An increase in Glomerular blood pressure b) An increase in osmolarity of tubular fluid c) An decrease in angiotensinogen d) A decrease in Glomerular blood pressure

Biology & Microbiology

Single-copy replication control means that

a. only one DNA molecule can be present in a cell at a time. b. there can be only one origin of replication in the entire genome. c. only one DNA molecule can be replicated in a cell at a time. d. a DNA molecule can only be replicated once during the cell cycle. e. there can be only one origin of replication on each DNA molecule.

Biology & Microbiology