The class of proteobacteria that may be incorporated into the gamma proteobacteria is the ________.
A. delta proteobacteria
B. alpha proteobacteria
C. beta proteobacteria
D. epsilon proteobacteria
Answer: C
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Myoglobin is a protein found in the muscles of cetaceans that:
a. stores energy. b. stores oxygen. c. maintains buoyancy. d. maintains heat. e. stores ATP.
Face length in dogs is controlled by ____
a. a dozen alleles b. a dozen genes c. multiple chromosomes d. sex-linked alleles e. trisomies
Male peacocks having more ornate plumage than their female counterparts is an example of which of the following features of ecological behavior?
a. monogamy b. sexual dimorphism c. sexual selection d. territoriality
Gallstones are a problem when they:
A) break and release enzymes. B) break and release cholesterol. C) block the cystic duct or common bile duct. D) get stuck in the folds of the small intestine.