WorksheetsNatural Selection and Evidence of Evolution Test Review
Total questions: 20
Worksheet time: 13mins
The digram shows that many generations of genetic changes led to the modern-day giraffe. Based on the diagram, it is plausible that the giraffe formed:
longer legs to attack predators
a longer neck to reach food in higher areas when the food is scarce
a narrower head to reach deep into trees and eat food that is hard to reach.
more spots to attract mates to produce offspring.
Sexual reproduction carries with it the potential for genetic mutation. Some mutations are destructive, as they make an organism less capable of surviving, while other mutations are beneficial and improve the individual's chance for survival. If an animal has a genetic mutation that allows it to defend itself extremely well, which of the following is most likely to occur?
The characteristic would be represented in lore individuals in successive generations.
The characteristic would be passed on to every member of the next generation.
The characteristic would disappear from the species in a few generations.
The characteristic would skip the immediate offspring and appear in a future generation.
There are five species of the Texas state flower, the bluebonnet. Each flower is found in a different region of Texas, and has slightly different traits. What most likely accounts for the variation?
selective pollination
genetic engineering
natural selection
selective breeding
The diagram shows variations of Galapagos Island finches that formed over many generations. What most likely caused the variations in these finches?
the temperatures on the islands
the available food on the islands
the available water on the islands
the number of mates on the islands
Explain the principles of Natural Selection. What is necessary for it to occur? Select three statements that are defined as the main points of Darwin's ideas about natural selection.
A. There is a struggle for survival, which results in the production of more offspring than can survive.
B. Differences in traits are determined by an organism's immediate needs.
C. Organisms that are better adapted to their environment will have a greater chance of survival and reproduction.
A. There is a struggle for survival, which results in the production of more offspring than can survive.
C. Organisms that are better adapted to their environment will have a greater chance of survival and reproduction.
E. There is a natural variation of traits among individuals of a species.
C. Organisms that are better adapted to their environment will have a greater chance of survival and reproduction.
E. There is natural variation of traits among individuals of a species.
F. Organisms that are naturally selected are at a higher risk for extinction.
D. Changes within a population happen immediately when the environment changes.
E. There is a natural variation of traits among individuals of a species.
F. Organisms that are naturally selected are at a higher risk of extinction.
An adaptation is a trait helps organisms
become less diverse
survive and reproduce
overproduce variations
become smaller and weaker
This picture shows a fossil. Which type of fossil is shown?
trace fossil
body fossil
amber fossil
cast fossil
How does the fossil record best support the theory of evolution?
It shows geographic changes over time.
It shows behavioral changes over time.
It shows population changes over time.
It shows structural changes over time.
Whales have a remarkably complete history recorded in the fossil record, dating back to approximately 60 million years ago. What does the fossil record most likely tell us about whales?
Whales have changed over long periods of time.
Whales have not adapted to changes in their environments.
Whales live longer today than they did in the prehistoric eras.
Whales live similarly to their prehistoric ancestors.
How should the fossils in the sediment layer of Earth appear if species have evolved over time?
All of the layers should contain fossils of simple organisms.
All of the layers should contain fossils of complex organisms.
The lower layers should contain fossils of more complex organisms.
The upper layers should contain fossils of more-complex organism.
Charles Darwin's theory that evolution was caused by natural selection explains that sequential nature of groups in the fossil record. The idea that the earlier, simpler species have been replaced by later more complex species explains the diversity of fossils. Darwin's theory of evolution:
Is a scientific explanation of the fossil record an modern biodiversity and has been tested by many scientists.
Is a scientific explanation of the fossil record that has not been tested by many scientists.
explains how a new species arose separately after the previous species became extinct.
explains how the adaptations of a species do not lead to its survival during periods of change.
The picture shows the fossils of three species of mosasaur, large marine reptiles that are now extinct. What do the similarities in these mosasaur fossils indicate?
that these mosasaurs all expressed similar behaviors
that these mosasaurs evolved from a common ancestor
that these mosasaurs were all genetically identical
that these mosasaurs lived in different environments
The diagram below shows a portion of the fossil record in sedimentary rock. Different rock layers and fossils are clearly visible. Which layer of rock is the oldest?
Layer A is the oldest.
Layer B is the oldest.
Layer D is the oldest.
They are all the same age.
The pictures show the peppered moth. use the pictures ad read the passage "Peppered Moths" to answer any questions that follow.
In England, light- and dark-colored moths had very different populations before and after the Industrial Revolution. Factories filled the air with pollution, which covered the countryside and trees with soot. Why did the moth population change after the Industrial Revolution?
because the soot allowed the dark moths to blend into their environment
because the soot allowed the light to stand out to attract more prey
because the soot prevented the moths from having a clean place to breed
because the soot provided a carbon-rih energy source for he moths to absorb
Select three reasons why studying fossils is important.
A. They provide information about the genes of species that are now extinct.
B. The present detailed traits of distant ancestors.
C. They show specific evidence of the habitat.
B. They present detailed traits of distant ancestors.
D. They are used to determine characteristics of an ancient environment.
E. They show evidence of diversity of organisms.
D. They are used to determine characteristics of an ancient environment.
E. They show evidence of diversity of organisms.
F. They provide information as to how the organism died.
A. The provide information about the genes of species that are now extinct.
E. They show evidence of the diversity of organisms.
F. They provide information as to how the organism died.
According to the theory of natural selection, what is an ability of individuals that make them more likely than others to survive and reproduce?
the ability to change their environment
the ability to avoid mutations in their genes
the ability to have multiple offspring
the ability to adapt to their environment
The diagram below shows the gradual change over time in the anatomy of the horse. Which concept is best illustrated by the physical variations in the horse and its body size and structure over time?
artificial selection
acquired characteristics
evolution
inheritance
Which population of organisms would be in the greatest danger of becoming extinct?
a population of organisms with few variations living in a stable environment
a population of organisms with many variations living in a stable environment
a population of organisms with few variations living in an unstable environment
a population of organisms with many variations living in an unstable environment
How did Darwin view the fossil record?
as record of the evolution of species
as unrelated to the evolution of modern species
as evidence that Earth was thousands of years old
as evidence that traits are acquired through use or disuse
Explain the theory of Natural Selection. What is necessary for it to occur?
