WorksheetsUnit 04: Evolution Test Review
Total questions: 15
Worksheet time: 8mins
Fossils, although interesting, do not actually provide evidence of evolution.
True
False
Homologous structures indicate a shared ancestry, while vesitigal structures do not.
True
False
Which combination of characteristcs in a population would provide the greatest potential for evolutionary change?
Small population, few mutations
Small population, many mutations
large population, few mutations
Large population, many mutations
When investigating shell color of a species of snail found only in a remote area seldom visited by humans, scientists discovered the distribution of individuals that is shown in the graph.
Based on the information shown in the graph, what form of selection is the snail population undergoing?
stabilizing selection
disruptive selection
artificial selection
directional selection
Which of the following is the explanation of why bird wings and reptile forelegs are evidence of evolution?
Similar functions point to a common ancestor.
Analogous structures indicate a common ancestor.
Vestigial structures point to a common ancestor.
Homolgous structures indicate a common ancestor.
Superficially similiar features molded by natural selection in very different species are classified as what kind of structures?
vestigial
homologous
analogous
comparative
A population diverges and becomes reproductively isolated. Which of the following is the best description of the phenomenon?
speciation
bottleneck
founders effect
genetic drift
Which of the following would best determine whether two plant species share a recent common ancestor?
DNA sequences
Habitat distribution
Stem lengths
Flowering times
Which is an example of genetic variation?
One child is older than another.
One child has blue eyes and the other has brown eyes.
One child eats meat and the other is a vegetarian.
One child has a scar and the other does not.
A genetic mutation causes a newt to have faster reflexes. After many generations, most of the newt population has the reflex mutation.
Which of the following most likely caused this change?
Newts with the mutation are better able to survive and reproduce than newts without the mutation.
Other newts learned to copy the strategies of the mutated newt.
The newt passed on its mutated gene to other adult newts.
The mutation was contagious.
In humans, babies that are born too small often lack the reserves to thrive, and babies that are too large are prone to difficult births.
Since babies at the extremes are less likely to survive, evolutionary pressures favor moderately-sized babies.
Disruptive selection
Directional selection
Stabilizing selection
Artificial selection
A small group of squirrels gets separated from the rest of the population due to a large flood. These squirrels, now confined to this new island, begin to start a new population.
Genetic drift
Gene flow
Bottleneck effect
Founder effect
What mechanism of evolution occurs when allele frequencies change over generations due to random chance?
Natural Selection
Genetic Drift
Gene Flow
Mutation
Cheetahs have come close to extinction due to hunting, drought, and disease. This has caused a decrease in the genetic variation in their populations.
Which of the following is a result of the limited genetic variation?
Cheetahs in current populations are more resistant to new diseases.
Cheetahs have greater mate choice.
The survival rate of young cheetahs is increased.
The cheetah populations are less likely to be able to adapt to environmental changes.
Natural Selection is based on the concepts of excess reproduction, variation, inheritance, and the advantages of certain traits.
True
False
