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Natural Selection, Genetic Drift, Extinction
Test Description: Natural Selection, Genetic Drift, Extinction
Instructions: Answer all questions to get your test result.
1) Which is the best example of organisms that have been naturally selected?
A
Light-colored peppered moths on soot-covered tree bark during the Industrial Revolution.
B
Dark-colored peppered moths on soot-covered tree bark during the Industrial Revolution.
2) A wildfire burns away all of the grass in an ecosystem. Which of the following explains the effects this will have on the other organisms within the ecosystem?
A
all organisms at each energy level within the ecosystem will be affected
B
only grass eaters and predators that eat these animals will be affected
C
only grass eaters will be affected because their food source is gone
D
only the grass will be affected by the wildfire
3) The process that results in changes of inherited traits over time
A
natural selection
B
gene pool stagnation
C
variation drift
D
genetic drift
4) Genetic drift tends to occur in populations that are
A
small
B
large
C
size does not matter
5) Natural selections acts directly on
A
phenotypes
B
mutations
C
genotypes
D
alleles
6) In genetic drift, a population changes due to
A
chance
B
selective pressurs
C
natural selection
D
adaptations
7) Extinction can be caused by
A
other organisms
B
natural disasters
C
all of the above
D
changes in climate
8) An adaptation is
A
a living thing
B
an animal hunted of caught for food
C
special traits of organisms that help them survive
D
the chance of an organism surviving a situation
9) Which adaptation of the snowshoe hare gives warmth and camouflage in its cold/snowy environment?
A
large, brown eyes
B
thick, white fur
C
wide, strong feet
D
large, flexible ears
10) How well an organism survives and reproduces in its environment can be described as its
A
homologies
B
common descent
C
analogies
D
fitness
11) Which scientist formulated the theory of evolution by natural selection?
A
Hutton
B
Darwin
C
LaMarck
D
Malthus
12) Which of the following is NOT a component of the Theory of Evolution by Natural Selection?
A
survival and reproduction
B
inheritance of acquired characteristics
C
variation among species
D
competition for food and space
13) One of the greatest evolutionary studies came from Darwin studying the _________ of finches.
A
feathers
B
hearts
C
mating calls
D
beaks
14) Individuals who are better adapted
A
expand territory
B
reproduce more
C
live longer
D
all of the above
15) Not all offspring that are produced will survive due to
A
overproduction
B
survival of the fittest
C
competition
D
genetic variation
16) Genetic drift is
A
related to adaptations
B
none of the above
C
survival of the fittest
D
survival of the luckiest
17) Which of the following is a natural and man-made factor of extinction?
A
oxygen depletion
B
volcanic activity
C
ice age
D
over-harvesting
18) Because of _________________ all the individual finches are different.
A
genetic drift
B
the gene pool
C
fitness
D
variation
19) Darwin's theory of Natural Selection is that the most _____ organisms survive.
A
dark
B
short
C
tall
D
fit
20) Which of the following is true of genetic bottlenecks?
A
reduce fertility of survivors
B
increased genetic diversity in a population
C
major environmental changes cause death of most members
D
some individuals of a species are moved to a new area
*select an answer for all questions
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