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Evolution

Total questions: 33

Worksheet time: 20mins

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.
Which of the following is a fossil?
a)
a plant that has recently died
b)
a group of organisms that can reproduce
c)
a structure or organ that no longer functions
d)
a trace of an organisms that existed in the past
3.
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
4.
Over time, adaptions can lead populations to experience 
a)
environmental changes
b)
genetic changes
c)
geological changes
d)
extinction
5.
what did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?
a)
different species on different islands
b)
all species on one of the islands
c)
identical species on all the islands
d)
the same species as North America
6.
In natural selection, the selective agent is the
a)
humans
b)
mutations
c)
breeders
d)
environment
7.
All rabbits living in a particular area would be an example of a(n)
a)
population
b)
species
c)
fossil
d)
individual organism
8.
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
9.

Which of the following describes natural selection?

a)

it acts on genetic material directly

b)

it acts on existing physical traits

c)

it forms new traits

d)

it forms new genetic material

10.
which of the folllowing is an exammple 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
11.

What is suggested by the anatomical similarity of different species of vertebrates?

a)

no evolutionary relationships between the groups

b)

recent common ancestry

c)

similar environments in the past

d)

evolution from a distant common ancestor

12.
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
13.
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
14.
Two organisms that are closely related would have
a)
very similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
15.
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
16.
a measure of how commonly a particular allele occurs in a population is known as the 
a)
gene pool
b)
allele frequency
c)
mutation rate
d)
phenotype
17.

The more genetic variation a population has,

the more likely it is for some individuals to

a)

evolve

b)

migrate

c)

survive

d)

mutate

18.
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
19.
What increases genetic variation when animals move  from one population to another
a)
genetic drift
b)
sexual selection
c)
bottleneck effect
d)
gene flow
20.

The five-factors for evolution are gene flow, genetic drift, mutation, natural selection and ....

a)

non-random mating

b)

controlled mating

c)

emigration

d)

immigration

21.
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
22.
What is speciation?
a)
combining of tow species to form one with different traits
b)
isolation that affects mating behaviors
c)
timing of mating that prevents normal sexual selection
d)
divergence of two or more species from an existing one
23.
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
24.
What kid of isolation occurs when two populations of birds have different courtship dances?
a)
geographic
b)
sexual
c)
temporal
d)
behavioral
25.
two species are in different environments and look very similar.  However, that are not closely related (analogous).  Their resemblance is most likely an example of.
a)
sexual selection
b)
temporal isolation
c)
convergent evolution
d)
divergent evolution
26.

Other insects cannot, but, a bumble bee has just enough weight to open up the snapdragon flower and pollinate. This adaption is ....

a)

convergent evolution

b)

co-evolution

c)

divergent evolution

d)

speciation

27.
asexual reproduction produces offspring with
a)
half of a single parent's genes
b)
the same genes as the parent
c)
a mix of genes from two parents
d)
lots of genetic variation
28.

What is the term for a feature that allows an organism to survive better in its environemtn?

a)

variation

b)

adaptation

c)

homologous structure

d)

vestigial structure

29.
the hind leg bones in a whale are examples of
a)
homologous structures
b)
analogous structures
c)
fossils
d)
vestigals
30.
What is the process in which humans breed organisms for certain traits?
a)
natural selection
b)
inheritance
c)
artificial selection
d)
descent withOUT modification
31.
Natural selection results in change over time by acting on traits that are
a)
heritable
b)
new
c)
mutated 
d)
better than the best
32.

The combined alleles of all individuals in a population is called the population's

a)

phenothype

b)

gene pool

c)

mutation rate

d)

allele frequency

33.

Natural selection could not occur without

a)

geographic isolation

b)

variation in the population

c)

stable environments

d)

competition for unlimited resources

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