Biology 123 exam 1 practice test questions
1. Some current species share one or more traits. These species
inherited these traits from a common ancestor they share. The shared
traits inherited from a common ancestor are:
A) evolution
B) alleles
C) homologies
D) All of the above: C) homologies
2. Charles Darwin described the change in traits that occurs in a
population over generations as "Descent with modification" as:
A) Transcription
B) splicing
C) evolution
D) translation: C) evolution
,3. Charles Darwin described evolution as "Descent with modification"
be- cause the:
A) traits expressed by the descents of an ancestral population are identical
to those of the ancestral population
B) traits expressed by the descents of an ancestral population differ
from those of the ancestral population: B) traits expressed by the
descents of an ancestral population differ from those of the
ancestral population
4. Charles Darwin described the biological change that occurs in species
over generations as "descent with modification". These changes occur
because they are-
A) adaptations that increase the ability to reproduce in the current
environ- ment
B) adaptations that decrease the ability to reproduce in the current
environ- ment: A) adaptations that increase the ability to reproduce in
, the current environ- ment
-adaptation: a trait that increase the ability to reproduce in its current
environment.
5. The shell of all seven species of a sea turtle is considered a homology.
This is because these sea turtles shared a common ancestor that had a:
A) Fur
B) Teeth
C) Fingers
D) Shell: D) shell
6. Which hypothesis accounts for the identical traits that all the elephant-
like species share?
A) these traits evolved independently in each species fossil record
1. Some current species share one or more traits. These species
inherited these traits from a common ancestor they share. The shared
traits inherited from a common ancestor are:
A) evolution
B) alleles
C) homologies
D) All of the above: C) homologies
2. Charles Darwin described the change in traits that occurs in a
population over generations as "Descent with modification" as:
A) Transcription
B) splicing
C) evolution
D) translation: C) evolution
,3. Charles Darwin described evolution as "Descent with modification"
be- cause the:
A) traits expressed by the descents of an ancestral population are identical
to those of the ancestral population
B) traits expressed by the descents of an ancestral population differ
from those of the ancestral population: B) traits expressed by the
descents of an ancestral population differ from those of the
ancestral population
4. Charles Darwin described the biological change that occurs in species
over generations as "descent with modification". These changes occur
because they are-
A) adaptations that increase the ability to reproduce in the current
environ- ment
B) adaptations that decrease the ability to reproduce in the current
environ- ment: A) adaptations that increase the ability to reproduce in
, the current environ- ment
-adaptation: a trait that increase the ability to reproduce in its current
environment.
5. The shell of all seven species of a sea turtle is considered a homology.
This is because these sea turtles shared a common ancestor that had a:
A) Fur
B) Teeth
C) Fingers
D) Shell: D) shell
6. Which hypothesis accounts for the identical traits that all the elephant-
like species share?
A) these traits evolved independently in each species fossil record
