Which archaeal phylum contains primarily extreme halophiles and methanogens?
A) Crenarchaeota
B) Euryarchaeota
C) Nanoarchaeota
D) Thaumarchaeota
Answer: B
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Because DNA:DNA hybridization reveals subtle differences in genes, it is useful for differentiating organisms from different
A) domains. B) families. C) orders. D) strains or species.
Microvilli are located on the _______ of a cell
A. basolateral surface B. basement membrane C. apical surface D. adjacent surface
Why is some pollen self-incompatible?
a. so the pollen will more likely disperse via animals or wind b. so the plant will need less energy c. so the plant will need less water d. so there will be a mixing of genes
What is the difference between the two atoms in the accompanying figure?
a. Their electrical charge b. The number of electrons c. The number of protons d. The number of neutrons e. The number of valence shells