Subway air and water distribution systems harbor dangerous levels of pathogenic microorganisms
Indicate whether the statement is true or false.
Answer: FALSE
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___________________ are organisms that derive carbon from organic compounds
A. Phototrophs B. Autotrophs C. Heterotrophs D. Chemotrophs E. Lithotrophs
Genetic sequence data from mitochondrial and Y chromosome DNA agree that the human family is _____ and it arose _____
A. young; in Africa B. young; in Europe C. old; in Africa D. old; in Europe E. old; in many regions around the world
Four of the five features listed below are similar
evolutionary characteristics in Homo. Select the exception. a. small, thin face b. high skull c. large cranial capacity d. larger body size e. specialized teeth
Competition between the members of two species is
A) most intense when the species are most similar and is referred to as interspecific. B) unusual and is referred to as interspecific. C) least intense between similar species and is referred to as interspecific. D) very common and is referred to as intraspecific. E) always very intense and is referred to as intraspecific.