Which bacterial groups have a gram- positive cell wall?
a. actinobacteria
b. firmicutes
c. both actinobacteria and firmicutes
d. proteobacteria
Ans: c. both actinobacteria and firmicutes
Biology & Microbiology
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__________ are produced in organs known as __________
a. Gametes; gonads b. Gonads; gametes c. Sperm; spermatocytes d. Eggs; uterus
Biology & Microbiology
In one of these years, there was a drought. Which year does it appear to be?
a. 2009 b. 2010 c. 2011 d. 2012
Biology & Microbiology
Which group of animals has one-way flow of air through its lungs, whereas all the others have tidal flow?
A. mammals B. amphibians C. birds D. reptiles
Biology & Microbiology
Fossils have been discovered for about how many species?
A. 10,000 B. 50,000 C. 100,000 D. 150,000 E. 250,000
Biology & Microbiology