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WorksheetsEvolution Concepts
Total questions: 17
Worksheet time: 9mins
Name
Class
Date
1.
The color and shape of this insect would be considered a beneficial
a)
adaptation
b)
relationship
c)
overproduction
d)
behavior
2.
By examining homologous structures we can infer that
a)
these 4 species use these limbs in different ways
b)
these 4 species likely had a common ancestor
c)
each of the species adapted to their current environment
d)
all of these are true
3.
The fossil record is most useful for determining
a)
relatedness of ancient species
b)
relatedness of species that evolved recently
c)
whether organisms produce the same proteins
d)
adaptations in bacteria
4.
Most species produce many offspring because
a)
overproduction helps to ensure survival of the species
b)
many of the offspring will be eaten by predators
c)
competition among individuals ensures the most fit will survive and reproduce
d)
this is all true
5.
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
6.
In natural selection, the selecting agent is the
a)
humans
b)
mutations
c)
breeders
d)
environment
7.
A bird that can easily outcompete other birds for food and that can produce many eggs has a high
a)
life expectancy
b)
mutation rate
c)
fitness
d)
adaptability
8.
What is suggested by the similarity of early embryos of different species of vertebrates?
a)
no evolutionary relationships between the groups
b)
recent common ancestry
c)
ability to be successful in the same environment
d)
evolution from a common ancestor
9.
Two organisms that are closely related would have
a)
similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
10.
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
11.
Genetic variation can arise from a random change in the DNA of a gene. The change is called a(n)
a)
mutation
b)
gene flow
c)
gene pool
d)
allele
12.
According to this cladogram, birds are LEAST related to
a)
Amphibians
b)
Sharks
c)
Ray Finned Fish
d)
Crocodiles
13.
What does Darwin's theory of evolution suggest?
a)
species change over time
b)
extinct species are not related to living species
c)
different species can interbreed
d)
animals that look alike are most closely related
14.
If species A and B have very similar genes and proteins, what is probably true?
a)
species A and B share a relatively recent common ancestor
b)
species A evolved independently of species B for a long period
c)
species A is younger than species B
d)
species A is older than species B
15.
On the cladogram, which organism is the closest relative of the human?
a)
Frog
b)
Hare
c)
Caiman
d)
Parrot
16.
Individuals that are well adapted to their environment will survive and produce
a)
fewer mutations
b)
ztronger genes
c)
more offspring
d)
better traits
17.
According to the cladogram, which organism is most distantly related to the human?
a)
crayfish
b)
rat
c)
perch
d)
frog
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