What distinguishes actinobacteria from firmicutes?
a. a thick waxy coat
b. high "G+C" content
c. most stain acid- fast positive
d. all of these characteristics
Ans: d. all of these characteristics
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How can you determine the genotype of a plant showing the dominant phenotype of red color?
A. The phenotype reflects the genotype, so the plant must be homozygous for the trait. B. Cross the red plant with a white plant to see if any white plants appear. C. Cross the red plant with other red plants to see if any white plants appear. D. Cross the red plant with a white plant to see how many red plants appear. E. Cross the red plant with another red plant, and then cross the F1 population with each other to see if any white plants appear.
A plant cell with 64 available ATP molecules could split how many N2 molecules with the assistance of nitrogenase?
A. 2 B. 4 C. 16 D. 32 E. 64
The ____secretes bile
a. liver b. gallbladder c. pancreas d. small intestine e. stomach
You are examining an animal in lab which you do not recognize immediately, but dissection shows that it has a backbone and a two-chambered heart, so you classify it among the
A. amphibians. B. reptiles. C. birds. D. fish. E. mammals.