1	Primary Sexual Characteristics		_____	exaggerated morphological traits used to attract the opposite sex
2	Secondary Sexual Characteristics		_____	natural selection that acts on heritable traits that affect reproduction
3	Sexual Selection		_____	exaggerated morphological traits used in intrasexual competition
4	Mate Competition		_____	physical resources (i.e. food) that a male provides to a female in order to enhance his mating success
5	Mate Choice		_____	a species in which females compete for males, who typically invest heavily in parental care
6	Anisogamy		_____	female reproductive success is most strongly limited by the number and success of eggs she can produce; male reproductive success is limited by the number of mates obtained
7	Isogamy		_____	individuals observe and copy the mating decisions of other individuals
8	Bateman's Hypothesis		_____	the genitalia and organs of reproduction
9	Parental Investment Theory		_____	all individuals produce gametes that have the same size, regardless of sex
10	Weapons		_____	a mating tactic in which a male attempts to avoid detection so that he can quickly enter a bourgeois territory to fertilize eggs being deposited in a nest
11	Ornaments		_____	the existence of different sized gametes in the different sexes
12	Lek		_____	genetic benefits females can obtain for their offspring by mating with males that have high genetic quality
13	Sensory Bias Hypothesis		_____	competition between sperm of different males to fertilize eggs
14	Sex-role Reversed Species		_____	material resources obtained by a female from mating with a particular male
15	Direct Material Benefits		_____	the strategy that yields the highest fitness
16	Nuptial Gift		_____	well-developed secondary sexual characteristics are costly to survival but reliable signals of fitness
17	Indirect Genetic Benefits		_____	selection by one sex for a member of the opposite sex for reproduction
18	Runaway Process		_____	an evolutionary process in which a male trait co-evolves with a female preference resulting in the male trait to become increasingly exaggerated
19	Handicap Principle		_____	the use of a particular strategy based on an individual's condition
20	Good Genes		_____	the alleles of a high-quality individual
21	Hamilton-Zuk Hypothesis		_____	intrasexual competition for access to the other sex for reproduction
22	Mate Guarding		_____	female mating preferences are a byproduct of preexisting biases in a female's sensory system
23	Extra-pair Young		_____	offspring of a pair-bonded female produced outside the pair bond by a third-party male
24	Sperm Competition		_____	reduction in fitness as a result of mating with close relatives
25	Cryptic Female Choice		_____	females influence the fertilization success of sperm from one male over another male
26	Inbreeding Depression		_____	a location where males aggregate to display to females
27	Alternative Mating Tactics		_____	parasites and pathogens play an important role in sexual selection when secondary sexual traits are costly and condition dependent
28	Satellite Male		_____	behavior in which a male follows his mate to prevent her from mating with rival males
29	Sneaker Male		_____	multiple mating behavioral phenotypes coexisting in one population
30	Conditional Strategy		_____	sexual dimorphic traits that are not directly involved in reproduction
31	Evolutionary Stable Strategy (ESS)		_____	the sex that has a greater investment in offspring production should be choosier when it comes to mates
32	Mate Choice Copying		_____	a parasitic mating tactic in which a male remains near a bourgeois male to intercept females that are attracted to the bourgeois male