Organisms that typically produce colonies with a fried egg appearance are the
A. Mycoplasma.
B. Actinomyces.
C. Chlamydia.
D. Mycobacteria.
A
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Imagine that a deep temperate zone lake did not turn over during the spring and fall seasons. Based on the physical and biological properties of limnetic ecosystems, what would be the difference from normal seasonal turnover?
A) The lake would be uniformly cold during the winter and summer. B) The lake would fail to freeze over in winter. C) An algal bloom of algae would result every spring. D) Lakes would suffer a nutrient depletion in surface layers. E) The pH of the lake would become increasingly alkaline.
Microbial biochemistry involves the discovery of microbial ________ and the ________ they perform
A) biomolecules / functions B) enzymes / catalyses C) metabolic pathways / reactions D) biomolecules, enzymes, and metabolic pathways / functions
Imagine that you are on a nature walk. Your guide points out a lichen growing on a tree trunk, and comments that lichens are actually a type of fungi. You know that this description is not correct. Why?
A. Lichens are actually vascular plants that produce hyphae instead of roots. B. Lichens are actually composed of both fungi and green algae (or cyanobacteria). C. Lichens are actually composed of both fungi and bryophytes. D. Lichens are actually bryophytes that produce hyphae instead of roots.
The adaptive significance of sexual reproduction is that it:
A. diversifies genotypes thereby allowing faster evolutionary responses to changing environments B. is more fun than asexual reproduction C. is more rapid than sexual reproduction D. promotes the dispersal of individuals more effectively E. All of the other choices provided are incorrect