In which one of the following locations does fertilization usually occur?
A) oviduct
B) ovary
C) uterus
D) cervix
E) vagina
A
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The organism, Phytophthora infestans, responsible for the Irish Potato Famine of 1845 and 1847 belongs to
A. Euglenozoa. B. Alveolata. C. Rhodophyta. D. Chlorophyta. E. Stramenopila.
The perianth of a flower consists of
A. the pistil and stamens. B. the petals and sepals. C. the pedicel and receptacle. D. the anthers and stigma. E. the style and ovary.
Not much physical evidence of life is available from rocks of the Precambrian because these ancientrocks:a
have been greatly eroded in most areas. b. have been deeply buried in most areas. c. have been deposited in oceanic trenches deep in the oceans. d. occupy inaccessible areas of mountainous regions. e. occupy the polar regions and are thus covered by glaciers
The first part of the renal tubule is called the _____ and is specialized for _____
A. proximal convoluted tubule; reabsorption of electrolytes and other nutrients.
B. loop of Henle; creation of a concentration gradient in the interstitial fluid
C. distal convoluted tubule; secretion of additional wastes into the urine
D. distal convoluted tubule; reabsorption of water
E. collecting duct; reabsorption of water