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Biol.111 Evolution Exam

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Chihuahuas, Border Collies, and Great Danes (all domestic dogs) descend from the same wolf species and can still interbreed. These varieties were produced by
A) speciation.
B) artificial selection.
C) natural selection.
D) genetic drift.
E) inheritance of acquired traits.
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Chihuahuas, Border Collies, and Great Danes (all domestic dogs) descend from the same wolf species and can still interbreed. These varieties were produced by
A) speciation.
B) artificial selection.
C) natural selection.
D) genetic drift.
E) inheritance of acquired traits.
B)Artificial selection
Which of the following best expresses the concept of natural selection?
A) differential reproductive success based on inherited traits
B) inheritance of acquired characteristics
C) change in response to need
D) a process of constant improvement, leading eventually to perfection
E) survival of the fastest
A) differential reproductive success based on inherited traits
Which of the following represents a pair of homologous structures?
A) the wing of a bat and the scales of a fish
B) the wing of a bat and the flipper of a dolphin
C) the antennae of an insect and the eyes of a bird
D) the feathers of a bird and the wing membrane of a bat
E) the wing of a bat and the wing of a butterfly
B) the wing of a bat and the flipper of a dolphin
Which of the following statements regarding natural selection is false?
A) Natural selection is more of an editing process than a creative mechanism.
B) Natural selection depends on the local environment at the current time.
C) Natural selection starts with the creation of new alleles that are directed
toward improving an organism's fitness.
D) Natural selection and evolutionary change can occur in a short period of time
(a few generations).
E) Natural selection can be observed working in organisms alive today.
C) Natural selection starts with the creation of new alleles that are directed
toward improving an organism's fitness
A population is
A) a group of individuals of the same species living in the same place at the same
time.
B) all individuals of a species, regardless of location or time period in which they
live.
C) a group of individuals of different species living in the same place and time.
D) a group of individuals of a species and the other species with which they
interact.
E) a group of species that share a common characteristic.
A) a group of individuals of the same species living in the same place at the same
time.