LS15 final ucla Exam 2025/2026 ACTUAL COMPREHENSIVE
FREQUENTLY MOST TESTED REAL EXAM QUESTIONS AND
VERIFIED SOLUTIONS/GET IT 100% ACCURATE!! ALREADY
GRADED A+ | NEWEST EXAM | JUST RELEASED!!
what conditions are conducive to reciprocal altruism -
ANSWER-1. repeated
interactions
2. high benefit to recipient relative to the cost
to the actor
3. ability to keep tabs on people (and to punish
cheaters)
what is a big impediment to kindness (from a biological
perspective) - ANSWER-freeloaders; you are very vulnerable
(from a fitness perspective) when you do something kind for
someone else. A cheater can take the favor and run ->
market share of cheater's genes increases and market share
of altruist's genes decreases. effective altruists can
remember cheaters
what are some design features we'd expect to see in the
human brain? what
skills should we be good at? - ANSWER-1. good at
recognizing faces
,2. good at keeping track of
cheaters
3. voracious consumers of
information
why are our brains so good at keeping track of social
information? – ANSWER-our brains were built for a world in
which we encountered only a small number of people and may
have needed to remember all of them/use all of them later.
what makes reciprocal altruism possible - ANSWER-humans
recognize faces,
keep track of kindness/selfishness, and live for
a long time
in what ways can you enhance cooperation - ANSWER-tinker
with the perceived costs and benefits:
1. reduce the perceived cost to the other person
2. accentuate the benefit that you'll receive from the
cooperation
3. facilitate the building of reputations
4. use honest signals that can't be fakes
5. keep track of and punish cheaters
6. make the first step; gifts (reduce the perceived vulnerability
of partner)
when gametes are produced through meiosis, each sperm or
egg generally
, ends up with: - ANSWER-exactly one copy of
each autosome
as predator and prey species coevolve, they are constantly
engaged in an
evolutionary struggle. This is an example of: - ANSWER-
the fact that a
population's environment may be changing
continuously
breeders creating breeds of dogs with smaller and smaller
body size are
conducting: - ANSWER-directional and natural selection;
remember that
artificial selection is a subtype of
natural selection
evolutionary change as a result of natural selection does NOT
always lead to:
ANSWER-increased reproductive success; environment could
change and the
organisms may take a while
to adapt
-
which mechanism of evolution consistently decreases the total
genetic variation
in a population - ANSWER-directional
selection
FREQUENTLY MOST TESTED REAL EXAM QUESTIONS AND
VERIFIED SOLUTIONS/GET IT 100% ACCURATE!! ALREADY
GRADED A+ | NEWEST EXAM | JUST RELEASED!!
what conditions are conducive to reciprocal altruism -
ANSWER-1. repeated
interactions
2. high benefit to recipient relative to the cost
to the actor
3. ability to keep tabs on people (and to punish
cheaters)
what is a big impediment to kindness (from a biological
perspective) - ANSWER-freeloaders; you are very vulnerable
(from a fitness perspective) when you do something kind for
someone else. A cheater can take the favor and run ->
market share of cheater's genes increases and market share
of altruist's genes decreases. effective altruists can
remember cheaters
what are some design features we'd expect to see in the
human brain? what
skills should we be good at? - ANSWER-1. good at
recognizing faces
,2. good at keeping track of
cheaters
3. voracious consumers of
information
why are our brains so good at keeping track of social
information? – ANSWER-our brains were built for a world in
which we encountered only a small number of people and may
have needed to remember all of them/use all of them later.
what makes reciprocal altruism possible - ANSWER-humans
recognize faces,
keep track of kindness/selfishness, and live for
a long time
in what ways can you enhance cooperation - ANSWER-tinker
with the perceived costs and benefits:
1. reduce the perceived cost to the other person
2. accentuate the benefit that you'll receive from the
cooperation
3. facilitate the building of reputations
4. use honest signals that can't be fakes
5. keep track of and punish cheaters
6. make the first step; gifts (reduce the perceived vulnerability
of partner)
when gametes are produced through meiosis, each sperm or
egg generally
, ends up with: - ANSWER-exactly one copy of
each autosome
as predator and prey species coevolve, they are constantly
engaged in an
evolutionary struggle. This is an example of: - ANSWER-
the fact that a
population's environment may be changing
continuously
breeders creating breeds of dogs with smaller and smaller
body size are
conducting: - ANSWER-directional and natural selection;
remember that
artificial selection is a subtype of
natural selection
evolutionary change as a result of natural selection does NOT
always lead to:
ANSWER-increased reproductive success; environment could
change and the
organisms may take a while
to adapt
-
which mechanism of evolution consistently decreases the total
genetic variation
in a population - ANSWER-directional
selection
