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