The evolutionary history of a group of organisms is called its ________ and it is inferred from ________

A) taxonomy / phenotype
B) phylogeny / nucleotide sequence data
C) phylogeny / phenotype
D) taxonomy / morphology


Answer: B

Biology & Microbiology

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The correct sequence of reagents used in the Gram stain technique is ____

a. iodine, alcohol, safranin, and crystal violet b. safranin, crystal violet, alcohol, and iodine c. crystal violet, iodine, alcohol, and safranin d. crystal violet, alcohol, iodine, and safranin e. alcohol, iodine, crystal violet, and safranin

Biology & Microbiology

MAOA is an enzyme that breaks down ______________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Consider the following food chain: hawk - rabbit - clover.  Each species will contain a different amount of calories in its body (clover: 10 calories, rabbit: 500, and hawk: 1200). Each species has a different daily caloric requirement (clover: sunlight, rabbit: 100 calories, hawk: 300). How many rabbits, per day, does it take to support the hawk?

A. about 1/2 a rabbit B. approximately 6 C. 2 whole rabbits D. 12 rabbits

Biology & Microbiology

Where in the lower respiratory tract would you find goblet cells?

A. trachea B. lungs C. nasal cavity D. esophagus E. bronchial tree

Biology & Microbiology