Midterm Fall 2010 Answer Key

Midterm Fall 2010 Answer Key - Between the Tropic of Cancer...

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Between the Tropic of Cancer and the Tropic of Capricorn: (A) Essentially all of the land has been continuously covered with tropical forests, from 300 million years ago until present, except those forests destroyed recently by humans; (B) Nearly all of the land area receives more than two meters of annual rainfall; (C) The species of plants living in that zone are widespread around that band of the earth, thus with the same species occurring in South America, Africa, and Southeast Asia; (D) The type of vegetation at any given location is determined to a large extent by the amount of precipitation received in which months and the overall temperature regime; (E) A and B. In the neotropical wet forests, these creatures are more responsible for nutrient cycling than are the other animals in their forest ecosystem: (A) earthworms; (B) gophers and other fossorial mammals; (C) leafcutter ants and termites; (D) primates; (E) spiders and mites. Regarding eukaryotic biodiversity measures, the most numerous species per hectare of any wet tropical forest would be: (A) arachnids; (B) birds; (C) herps (amphibians and reptiles); (D) hexapods; (E) plants. What of the following is a remarkable aspect of neotropical army ants ( Eciton )?: (A) Every animal living within a 100-meter radius of the nest will eventually be killed by them; (B) Their stings are capable of paralyzing even coral snakes; (C) The queen is the largest insect on earth while she is laying eggs; (D) The queen often lives more than ten years, producing at least 30,000 eggs every day of her life; (E) This is the type of tropical ant that, during a two-week period each month, breaks down its nest and rebuilds another, a bivouac, each night during that period. Members of this group of mostly non-flying arthropods have mouth parts on adults modified to suck sugary solutions from plant phloem, and are used, and even “farmed,” by certain ants: (A) grasshoppers and crickets; (B) homopterans; (C) Hymenoptera; (D) Lepidoptera; (E) Myriapoda. When grabbed, a boiling hot spray of benzaquinone is produced from a reaction chamber in the abdomen of this creature: (A) a bullet ant; (B) bombardier beetle; (C) dung scarab beetle; (D) tarantula and wolf spider; (E) whipscorpion.
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From the following list, choose the group of Class Insecta that DOES NOT have larvae in the life cycle: (A) aphids; (B) butterflies; (C) flies; (D) moths; (E) wasps and ants. What lesson did David Attenborough teach us about the gigantic nests of Nigerian termites?: (A) A colony consumes more grass leaves per day than does a grazing ruminant wildebeest: (B) Heat generated by activities of these fungus-growing macrotermites is controlled by water evaporation from the lower portion of the nest, an internal comb design, and temperature dissipation and gas exchange on the outside projections; (C) Termites of this species are safe from attack by African army ants ( Dorylus ) because they can escape safely into the nest without being pursued;
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This note was uploaded on 04/12/2011 for the course EEB 151A taught by Professor Gibson during the Winter '11 term at UCLA.

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Midterm Fall 2010 Answer Key - Between the Tropic of Cancer...

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