BIO 1300 Exam #1 Practice Questions with correct verified
answers 2025
Terms in this set (233)
The term evolution is used to heritable changes in characteristics of a population from one generation to
describe the next
Evolution, viewed on a small microevolution
scale, as it relates to changes in a
single gene or allele frequency in
a population over time, is called
The concept of a species was John Ray
proposed by
Several turtles hatch from a clutch of eggs buried in the sand on
Darwin's concept of evolution
a beach. One of the turtles is the color of the sand, the others
"the theory of descent with
are darker in color. The turtles all scurry to the water, but one
modification through variation
by one the dark turtles are eaten by birds, only the sand
and natural selection" can be
colored turtle survives. When it enters the water the sand
demonstrated by which of the
color changes to a darker brown. The turtle grows, mates and
following examples?
has offspring that are also sand colored when they are born.
Peter and Rosemary Grant Yes; because the average beak depth of birds in the population increased
study natural selection in from
8.8mm in 1976 to 9.8mm in 1978.
finches on the Galápagos
Islands. They have
hypothesized that dry
condition produce larger seeds
and may result in larger beaks
in succeeding generations of
finches. The figure below
shows their data from 1976 and
1978. The y- axis is the number
of birds measured and the x-
axis is the beak depth. Do their
data support their hypothesis
and why?
What is true of a fossil that is It has all of the traits of its ancestors and some of the traits of its
classified as a "transitional descendants.
,form"?
, An important message from only a fraction of any population will survive and reproduce
the work of Thomas Malthus
that influenced Charles
Darwin was
According to Thomas Malthus, True
food supplies tend to increase
arithmetically while
populations tend to increase
exponentially, which means
that populations will outgrow
their food supply.
How did Darwin develop his Observation
theory of evolution?
Extincti
The process of natural selection on.
results in Adaptati
on.
Speciati
on.
During the Beagle journey, Because the island species had both similarities to their
Darwin visited islands, continental ancestors and unique adaptations to their island
allowing him to compare environments
island species with continental
species. In terms of framing his
theory of evolution, why was
this significant?
What idea is shared by both Environmental changes can lead to the modification of traits.
Lamarck's and Darwin's theories
of evolution?
The interlocking rib cage of Primitive wrist and finger-like bones.
Tiktaalik roseae suggests that this
transitional organism had lungs.
What other traits were found in
T. roseae, but not in its ancestral
form?
Which scenario best illustrates a population of mosquitoes develops resistance to a pesticide.
the process of natural
answers 2025
Terms in this set (233)
The term evolution is used to heritable changes in characteristics of a population from one generation to
describe the next
Evolution, viewed on a small microevolution
scale, as it relates to changes in a
single gene or allele frequency in
a population over time, is called
The concept of a species was John Ray
proposed by
Several turtles hatch from a clutch of eggs buried in the sand on
Darwin's concept of evolution
a beach. One of the turtles is the color of the sand, the others
"the theory of descent with
are darker in color. The turtles all scurry to the water, but one
modification through variation
by one the dark turtles are eaten by birds, only the sand
and natural selection" can be
colored turtle survives. When it enters the water the sand
demonstrated by which of the
color changes to a darker brown. The turtle grows, mates and
following examples?
has offspring that are also sand colored when they are born.
Peter and Rosemary Grant Yes; because the average beak depth of birds in the population increased
study natural selection in from
8.8mm in 1976 to 9.8mm in 1978.
finches on the Galápagos
Islands. They have
hypothesized that dry
condition produce larger seeds
and may result in larger beaks
in succeeding generations of
finches. The figure below
shows their data from 1976 and
1978. The y- axis is the number
of birds measured and the x-
axis is the beak depth. Do their
data support their hypothesis
and why?
What is true of a fossil that is It has all of the traits of its ancestors and some of the traits of its
classified as a "transitional descendants.
,form"?
, An important message from only a fraction of any population will survive and reproduce
the work of Thomas Malthus
that influenced Charles
Darwin was
According to Thomas Malthus, True
food supplies tend to increase
arithmetically while
populations tend to increase
exponentially, which means
that populations will outgrow
their food supply.
How did Darwin develop his Observation
theory of evolution?
Extincti
The process of natural selection on.
results in Adaptati
on.
Speciati
on.
During the Beagle journey, Because the island species had both similarities to their
Darwin visited islands, continental ancestors and unique adaptations to their island
allowing him to compare environments
island species with continental
species. In terms of framing his
theory of evolution, why was
this significant?
What idea is shared by both Environmental changes can lead to the modification of traits.
Lamarck's and Darwin's theories
of evolution?
The interlocking rib cage of Primitive wrist and finger-like bones.
Tiktaalik roseae suggests that this
transitional organism had lungs.
What other traits were found in
T. roseae, but not in its ancestral
form?
Which scenario best illustrates a population of mosquitoes develops resistance to a pesticide.
the process of natural
