If you found a well-preserved fossil specimen with many velociraptor-like characteristics (an extinct dinosaur of Jurassic Park fame), which species concept would you use to determine whether it is indeed a member of the velociraptor genus, a close relative, or a novel species?
A. biological species
B. phylogenetic species
C. morphospecies
Ans: C. morphospecies
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If a plant species exhibits maternal inheritance for leaf pigmentation, what is the phenotype of the parents of a variegated (green and white leaves) plant?
A. The maternal plant must be white and the paternal plant must be green. B. The maternal plant must be green and the paternal plant must be white. C. The maternal plant must be variegated and the paternal plant can be any color. D. Both the maternal and paternal plant must be variegated. E. The maternal plant must be variegated and the paternal plant must be white.
What advantage does the activity of osteoblasts and osteoclasts impart to vertebrates, even after growth has finished?
A) As old bones are dissolved, new bones can be formed. B) The cells enable bone to lengthen and shorten as needed. C) Bone growth never finishes; it continues at a slow pace throughout life. D) The cells allow bone to get stronger as physical demands are placed on it.
Most people have a positive Rh factor.
a. true b. false
Infection with the intracellular parasite Orientia tsutsuganushi can result in
A. endemic typhus. B. epidemic typhus. C. scrub typhus. D. Rocky Mountain Spotted Fever (RMSF) E. murine typhus