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4-1 Evolution

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Evidence for the evolution of life comes from
a.
physical experiments
b.
fossils
c.
chemical analysis of ancient rocks and core samples
d.
all of these answers
e.
DNA
 

 2. 

You are a fossil hunter. Which of the following are you least likely to find in a fossil?
a.
bone
b.
leaves
c.
teeth
d.
muscle
e.
shells
 

 3. 

The fossil record is incomplete because
a.
Not all fossils have been found.
b.
Some fossils have decomposed.
c.
Some life forms left no fossils.
d.
All of these answers.
e.
None of these answers.
 

 4. 

Which of the following is true with regards to the theory of evolution?
a.
Organisms that occupy niches in higher trophic levels are more highly evolved.
b.
Mutations are the only truly novel source of genetic material upon which natural selection acts.
c.
Mutations can result in slightly modified adaptations that organisms choose between to best meet current environmental conditions.
d.
Evolution is a linear process that intends to progress from rudimentary life forms toward the more complex.
e.
Evolution began as a result of an experiment conducted by Charles Darwin.
 

 5. 

Which of the following is TRUE with regards to mutations?
a.
Mutations are always harmful.
b.
Mutations always provide for beneficial changes in an organism's genetic makeup.
c.
Mutations are chosen by the organism to improve their survival.
d.
Natural selection determines the types of mutations that survive in a population.
e.
All of these are true of mutations.
 

 6. 

Human-made chemicals to which exposure can cause mutations are known as
a.
x-rays
b.
radioactivity
c.
mutagens
d.
teratogens
e.
heritogens
 

 7. 

A change in the genetic composition of a population over successive generations is called
a.
emigration
b.
mutation
c.
natural selection
d.
evolution
e.
genetic drift
 

 8. 

A gene pool is
a.
the collection of genes being used in the human genome project
b.
the genetic composition of an organism
c.
the genetic composition of a population
d.
the genetic composition of a community
e.
the genetic composition of an ecosystem
 

 9. 

Mutations can be caused by
a.
ultraviolet light
b.
x-rays
c.
certain chemicals
d.
all of these answers
e.
radioactivity
 

 10. 

Mutations are
a.
always occurring in patterns
b.
very common events
c.
a source of new genetic material
d.
always harmful
e.
all of these answers
 

 11. 

Coevolution can involve the interaction of
a.
plants and herbivores
b.
pollinators and flowers
c.
parasites and hosts
d.
plant roots and fungi
e.
all of these answers
 

 12. 

Which of the following is false? Coevolution
a.
occurs when interacting species exert selective pressures on each other
b.
occurs between plants and the herbivores that eat them
c.
may play a role in the evolution of camouflage
d.
leads to competitive relationships
e.
all of these answers
 

 13. 

Which of the following characteristics must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?
a.
The trait must be the result of environmental conditions.
b.
The trait must be genetically based.
c.
The trait must impact the social rank of its possessor.
d.
The trait must be a physical characteristic of the organism.
e.
The trait must be a behavioral characteristic of the organism.
 

 14. 

Which of the following is true of a trait that leads to differential reproduction?
a.
It enables individuals with the trait to leave more offspring than other members of the population leave.
b.
It results in greater genetic diversity in the offspring of those organisms that possess it than in those that do not possess the trait.
c.
It causes the ratio of male and female offspring produced to be equal.
d.
It results in offspring that are genetically different than the parents.
e.
It results in non-heritable traits being passed from parent to offspring.
 

 15. 

Which of the following is/are thought to be in part responsible for the evolutionary success of humans?
a.
Humans possess strong opposable thumbs.
b.
Humans walk upright.
c.
Humans have complex brains.
d.
Humans are able to use tools.
e.
All of these.
 

 16. 

The evolutionary arms race between predator and prey, where the predator and prey alternatively develop some trait that enhances its ability to either capture or evade predation respectively, is best described as
a.
convergent evolution
b.
creative evolution
c.
concurrent evolution
d.
concerted evolution
e.
coevolution
 



 
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