In which major taxonomic group of Archaea are the methanogens found?

a. Crenarchaeota
b. Korarchaeota
c. Nanoarchaeota
d. Euryarchaeota


Ans: d. Euryarchaeota

Biology & Microbiology

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The space between the lens and iris is

a. the posterior cavity. b. the posterior chamber. c. the anterior chamber. d. none of the above.

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__________ and __________ maintain water and

solute concentrations inside both plants and animals. Fill in the blank(s) with the appropriate word(s).

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What is one way biologists determine the life stage of birds?

A) counting otoliths B) plumage C) examining the gap in wing bones D) tooth shape

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Which plant tissue is the least specialized and most common of all plant cell types?

A. parenchyma B. meristems C. sclerenchyma D. periderm E. collenchyma

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