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44’ EXAM 1 ‘
Dr. A. M. Rossi Name: 222; 1&1 (A )l 1 £3
Fall 2009 Std #: Al‘ 2 I29 i; : S > Some potentially useful formulae: x2 = £(obs — expf; (p + q) = 1; % = (1/2N)(100);
exp ECOLOGY (PCB 3043C) 1. Multiple choice (2 points each). Read each problem carefully and select the _l_)_e_st answer. You may use
a calculator. 1. Which type of selection is most likely responsible for the bright red color of male cardinals? a. stabilizing.
b. directional. c. disruptive. 4 sexual.
e. none of the above. 2. Which of the following represents an ethological isolating mechanism between two species? a. incompatible genitalia between males and females of the two species.
b. sterile hybrid offspring. c. seasonal differences in reproductive competency (mating times).
@different mating calls. e. different habitat requirements. 3. Which of the following is n_ot an assumption of the Hardy-Weinberg Theorem? a. random mating. b. no mutation acting on the gene locus.
c. sexual reproduction. @non—random mating. 6. all of the above are assumptions. 4. Approximately what percentage of species that have ever evolved on Earth are extant (or still living)? 6. none of the above.
/ The root of the word “ecology” is derived from the Greek word for:
population. (3 if k 6 3 species.
6. individual. ...
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- Spring '11