Which of the following is found in "chain-like" strings of coccus shaped bacteria?
a) streptococcus
b) staphylococcus
c) gonococcus
d) diplococcus
e) vibrio
Answer: a) streptococcus
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The environment can impact the phenotype controlled by polygenic inheritance
Indicate whether the statement is true or false.
Consider the phylogeny (Fig. 34.15) below. Imagine that the trait "complex multicellular fruiting bodies" actually was present in the common ancestor indicated by the arrow
What would its presence in the common ancestor mean for the evolution of fruiting bodies in the group Dikarya? A. The Glomeromycetes lost complex multicellular fruiting bodies. B. The group Dikarya has members that didn't evolve complex multicellular fruiting bodies. C. The group Dikarya has members that lost the trait of complex multicellular fruiting bodies. D. Because only one trait can evolve at a node, regular septa would have evolved at some other place on the phylogeny.
"Rice-water stools" are associated with disease caused by which organism?
A. Vibrio parahaemolyticus B. Vibrio cholerae C. Helicobacter pylori D. Campylobacter jejuni E. Vibrio vulnificus
A P. bursaria cell that has lost its zoochlorellae is aposymbiotic. If aposymbiotic cells have population growth rates the same as those of healthy,
zoochlorella-containing P. bursaria in well-lit environments with plenty of prey items, then such an observation would be consistent with which type of relationship? A) parasitic B) commensalistic C) toxic D) mutualistic