________ discovered that soil bacteria could oxidize iron, sulfur, and ammonia to obtain energy.
Fill in the blank(s) with the appropriate word(s).
Winogradsky
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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.
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.
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
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.