Eutrophication is
a. the enrichment of a body of water with nutrients.
b. the acidification of a body of water with leaves
of a hardwood tree.
c. the turning of water during winter months in
lakes.
d. the algal production of toxins to kill fish.
e. none of these.
Answer: a
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Which statement about dinosaurs is FALSE?
a. Some species lived in social groups and hunted in packs. b. Dinosaurs were all slow-moving, with relatively low metabolic rates. c. Fossils of dinosaurs with feathers suggest that feathers first evolved to provide insulation. d. Dinosaur social behaviors include courtship rituals and parental nurturing of the young. e. Dinosaurs underwent an extensive radiation throughout the Jurassic and Cretaceous periods.
If there is gene flow between two adjacent populations of the same species, then the two populations will
A. become isolated from each other. B. develop into different species. C. have similar gene pools. D. adapt to different conditions and become separate.
A. Prostate gland B. Urinary bladder C. Urethra D. Ejaculatory duct E. Seminal vesicle F. Bulbourethral gland G. Vas deferens H. Epididymis I. Scrotum J. Testis