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WorksheetsBio evolution
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?
a)
individual
b)
population
c)
species
d)
fossil
2.
The difference in the physical traits of an individual from those of other individuals in a group is called a(n)
a)
change
b)
adaption
c)
species
d)
variation
3.
Over time, adaptions can lead populations to experience
a)
environmental changes
b)
genetic changes
c)
geological changes
d)
extinction
4.
In natural selection, the selective agent is the
a)
humans
b)
mutations
c)
breeders
d)
environment
5.
All rabbits living in a particular area would be an example of a(n)
a)
population
b)
species
c)
fossil
d)
individual organism
6.
The process by which all organisms change slowly over time because of slight gene variations is called
a)
natural selection
b)
artificial selection
c)
evolution
d)
gene pool
7.
Who observed variations in the characteristics of plants and animals on different islands of the Galapagos?
a)
James Hutton
b)
Charles Lyell
c)
Jean-Baptiste Lamarck
d)
Charles Darwin
8.
Which of the following conditions are necessary for natural selection to occur?
a)
overproduction of offspring
b)
variation within a population
c)
struggle for existence
d)
all of the above
9.
Based on the adaptations Darwin observed in finches and tortoises in the Galapagos, he wondered
a)
if species living on different islands had once been members of the same species
b)
if finches and tortoises had originated from the same ancestral species
c)
if all birds on the different islands were finches
d)
why all tortoises on the different islands were identical
10.
Darwin's observation that finches of different species on the Galapagos have many similar physical traits supports the hypothesis that these finches
a)
have the ability to interbreed
b)
acquired traits through use and disuse
c)
all eat the same type of food
d)
descended from a common ancestor
11.
Which of the following phrases best describes the results of natural selection?
a)
natural variation found in all populations
b)
unrelated species living in different locations
c)
changes in the inherited characteristics of a population over time
d)
struggle for existence undergone by all iving things
12.
Mutations are important because they bring about
a)
death of the organism in which they develop
b)
genetic variation needed for a population to evolve
c)
benefits for the individual, not for the population
d)
Hardey-Weinberg equilibrium within a population
13.
An earthquake causes an ocean channel top open and separate an island into two. the species on each section are now in
a)
geographic isoliation
b)
behavioral isolation
c)
disruptive selection
d)
temporal isolation
14.
Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?
a)
individual
b)
population
c)
species
d)
fossil
15.
All rabbits living in a particular area would be an example of a(n)
a)
population
b)
species
c)
fossil
d)
individual organism
16.
which of the following is an example of a vestigial structure?
a)
the wings of a red-tailed hawk
b)
the hind limbs of a house cat
c)
the fins of sharks
d)
the wings of an ostrich
17.
Some organisms that share a common ancestor have features that have different functions, but similar structures. These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
18.
If an organism has a vestigial structure, that structure likely once had a function in a(n)
a)
close relative
b)
early ancestor
c)
unrelated organism
d)
embryological stage
19.
protein sequences in one organism that resemble those of another suggest a
a)
coincidence
b)
lack of evolutionary relationship
c)
great number of mutations
d)
shared ancestry
20.
Mutations are important because they bring about
a)
death of the organism in which they develop
b)
genetic variation needed for a population to evolve
c)
benefits for the individual, not for the population
d)
Hardey-Weinberg equilibrium within a population
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