If you were using cladistics to construct a phylogeny of canines, which of the following would be the most useful outgroup?

a. Leopard
b. Domestic dog
c. Coyote
d. Wolf
e. Crocodile


Answer: a. Leopard

Biology & Microbiology

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All the following are used to classify plankton except:

a. taxonomic groups. b. functional groups. c. life history. d. light spectrum requirements. e. size.

Biology & Microbiology

You want to know whether cookies made with unbleached flour taste better than cookies made with bleached flour; which of the following has the strongest experimental design to test this question?

A) Make two batches of cookies, both with bleached flour; one taster tries both types and ranks which type he likes best. B) Make two batches of cookies, one with bleached flour and one with unbleached flour; one taster tries both types and ranks which type he likes best. C) Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types and rank which type they like best. D) Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types without knowing which ones they are eating and rank which type they like best.

Biology & Microbiology

Electron transport chain What is released at each step of an electron transport chain?

a) ultraviolet wavelengths b) electrons c) photons d) energy e) All answers are correct.

Biology & Microbiology

The study of algae is referred to as ________.

A. mycology B. phytology C. phycology D. None of the choices are correct.

Biology & Microbiology