Many living and fossil species of camelids, a mammal family containing camels, llamas, and alpacas, can be found in the Americas, but only two species can be found in Asia and one can be found in Africa
The part of the world in which the camelids probably evolved is ________. Fill in the blank(s) with correct word
the Americas
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The expected outcome of an oxidase test performed to identify Neisseria menigitidis is
A. a color change of a colony from tan to black when oxidase reagent is added. B. the amplification of the oxi gene as detected on an agarose gel. C. cells colored black when stained and viewed under the microscope. D. a zone of clearing surrounding colonies on chocolate agar. E. the appearance of bubbles when cells are mixed with hydrogen peroxide.
The term 'Prevalence' refers to the total number of cases of a disease within a specified period per unit of population.
a. true b. false
The cochlea is an organ of auditory transduction that contains _____
A) fluid and cells that can undergo mechanosensory transduction B) air and cells that produce wax C) air and small bones that vibrate in response to sound waves D) fluid with stacks of chemosensory cells E) air and statocysts activated by movement
Polymerase chain reaction (PCR) has advanced an understanding of systematics because it allows
a. for analysis of morphological traits. b. for analysis of small amounts of DNA from dried museum specimens and some fossils. c. for the reconstruction of entire individuals from a small amount of DNA. d. for the reconstruction of entire individuals from a small amount of RNA. e. for the analysis of an entire genome from a small fragment of the genome.