In the scientific name, Homo sapiens, "Homo" indicates the ________ of the organism, while "sapiens" indicates its ________.
Fill in the blank(s) with the appropriate word(s).
genus; species
The scientific name of a human being is based upon the binomial nomenclature which indicates the genus and the species.
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Working with biosafety Level 3 agents requires:
a. U.S. Department of Agriculture (USDA) credentials and a postgraduate degree in microbiology or a related field. b. laboratory design features that control air movement. c. personnel to wear protective clothing and devices and enter a decontaminating chamber before leaving. d. workers to have blood samples routinely tested to rule out infection or contamina-tion.
Which brain structure controls the secretion of hormones in the rest of the body?
A. The cerebellum B. The hypothalamus C. The brainstem D. The thalamus
Most people with the dominant mutant polydactyly allele have extra digits, but at least 25% have the normal number of digits. What is the genetic explanation for this observation?
A) dominant negative allele B) temperature-sensitive allele C) lethal allele D) partial dominance E) incomplete penetrance
Which of the following is an example of an aquatic ecosystem?
A. fishes, snails, crabs, water, and salinity B. fishes, snails, and crabs only C. both water and salinity D. water only E. salinity only