WorksheetsSexual Selection
Total questions: 20
Worksheet time: 14mins
Sexual reproduction results in
No variation
Large amounts of variation
Sexual reproduction results in
Genetically unique offspring
Genetically identical offspring
Which of the following describes the main advantages of sexual reproduction?
requires lots of time/energy
no new gene combos can arise
genetic diversity
looks identical to the parent
Sexual selection is _________________
the same as natural selection
a type of natural selection
Peacock have big fancy tails because
it helps them blend in to their environment
it helps them fight off predators
it attracts peahens
it helps them reproduce
non random rates of reproductive success caused by differences among individuals competing for mates
(a)
Intrasexual selection
male vs. male combat (within a sex)
females choose males (between the sexes)
Intersexual selection
male vs. male combat (within a sex)
females choose males (between the sexes)
The exception that proves the rule
parental care role reversal
auditory displays
competing for mates
monogamous species
An organism's allele are an evolutionary dead end when they (a) .
Natural selection involves competition for limited resources. In sexual selection the limited resource is
(a)
The two types of sexual selection are
sexy sons
male competition
female choice
good genes
Competition occurs in individuals of the same...
(a)
Male competition
females compete with one another for males
males compete with one another for females
females choose the males
Female choice
Females choose which males to mate with
Males choose which females to mate with
Males compete with one another for females
What are the two theories of sexual selection?
Sexy sons
Good genes
male competition
female choice
What is the Sexy Sons Hypothesis?
females choose attractive partners so their sons can be attractive
females determine which males have good genes based on things like size, appearance, and behavior
What is the Good Genes Theory?
females choose attractive partners so their sons can be attractive
females determine which males have good genes based on things like size, appearance, and behavior
evolution of exaggeration in male characteristics due to female preference
(a)
Choosing breeding partners to develop certain traits
(a)
