A scientist is building a cladogram for animals. Which of the following is a node that you would expect to find on the cladogram?

a) leg length
b) deuterostome development
c) feather arrangement
d) fur texture


Answer: b) deuterostome development

Biology & Microbiology

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Effluent water is wastewater

A) discharged from the pharmaceutical, plastics, and petrochemical industries. B) discharged from the wastewater treatment facility. C) that has undergone anoxic secondary wastewater treatment. D) that is imported to the wastewater treatment facility for treatment.

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Which of the following has been genetically modified or enhanced for commercialized medical or agricultural purposes?

a. methicillin b. glucagon c. H1N1 flu vaccine d. chickenpox vaccine

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Researchers tend to name genes based on what

happens in their absence. The tinman gene in Drosophila results in flies a. without hearts. b. with nonjointed legs. c. with a thick exoskeleton. d. with rust colored eyes. e. without brains

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Accommodation refers to the adjustment of the lens curvature by the ciliary muscle when you focus on near or far objects.

a. true b. false

Biology & Microbiology