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Evolution And Natural Selection
Test Description: Evolution, natural selection
Instructions: Answer all questions to get your test result.
1) Who was the first person to base a system of classification on organisms having similar structures?
A
Darwin
B
Linnaeus
C
Einstein
D
Aristotle
2) Which of these characteristics BEST helps scientists classify organisms?
A
size
B
gender
C
structure
D
color
3) What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?
A
gene mutation
B
environmental changes
C
selective breeding
D
decrease in reproduction
4) Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?
A
They live in the same area of the ocean.
B
They have similar anatomies.
C
They eat the same food.
D
They swim the same way.
5) What do transitional fossils best support?
A
the Theory of Biological Evolution
B
the Law of Superposition
C
the Theory of Continental Drift
D
the Theory of Geological Evolution
6) Tigers and household cats are members of the same family; however, their sizes are vastly different. What is the cause of this difference?
A
behavioral makeup
B
genetics
C
habitat size
D
biochemical makeup
7) Which would best allow a species to survive environmental changes?
A
low mutation rate
B
similar physical features
C
genetic diversity
D
small population
8) Which best describes the relationship between genetic variation and the ability to adapt to one’s environment?
A
Genetic variation has no effect on the ability to adapt.
B
As genetic variation increases, the ability to adapt decreases.
C
As genetic variation decreases, the ability to adapt increases.
D
As genetic variation increases, the ability to adapt increases.
9) Which evidence would best support the extinction of a past species?
A
the evolution of a new species
B
the disappearance of a species’ fossils
C
the loss of a species’ habitat
D
the increase in predators of the species
10) Bird wings and insect wings are analogous structures. Which can most likely be concluded?
A
Insects evolved from birds.
B
Birds and insects have a close common ancestor.
C
Birds and insects do not have a close common ancestor.
D
Birds evolved from insects.
11) The human arm contains the radius and ulna bones. Whales, bats, and dogs also have these bones. Which statement best explains this relationship between the organisms?
A
Humans evolved around the same time as the other animals.
B
Humans and the other animals share a common ancestor.
C
Humans have existed in the same location as the other animals.
D
Humans evolved from whales, bats, and dogs.
12) What do scientists most often use to form the basis for biological classification?
A
comparative anatomy
B
dietary habits
C
population size
D
geographic location
13) Who first proposed the theory of evolution by natural selection
A
Darwin
B
Wegener
C
Linnaeus
D
Fleming
14) Which is the main cause of the variation in traits within a population of organisms?
A
genetic mutations
B
common ancestors
C
environmental conditions
D
reduction of habitats
15) Which best describes the similar function of wings in birds and butterflies?
A
analogous structures
B
vestigial structures
C
embryological structures
D
homologous structures
*select an answer for all questions
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