Download EVOLUTION Practice TestHISTORY

EVOLUTION
Practice TestHISTORY OF EVOLUTION
[4pts]___________ ______________
was the English naturalist that wrote the book On the
Origin of Species by Natural Selection. In his book, Darwin posed his theory of ___________ ________
Darwin came up with his explanation of how species can form after his five year voyage on the HMS
_______________. During this voyage, he saw and collected many different _______________ that had
never before been seen in Europe.
[4pts]How did the Galapagos Finches and the Tortoises, help Darwin create his theory of Natural
Selection?
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THEORY OF NATURAL SELECTION
[4pts] List the four(4) principles of Natural Selection.
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For each of the Mechanisms of Evolution, describe what they do and how they work to change a species
Natural Selection
Directional Selection
Stabilizing Selection
Disruptive Selection
Sexual Selection
Genetic Drift
Non Random Mating
Gene Flow
Starlings produce an average of five eggs in each clutch. If there are more than five, the parents cannot
adequately feed the young. If there are fewer than five, predators may destroy the entire clutch. This is an
example of which type of Natural Selection?
[4pts] In ostriches, there are 2 types: ones that run fast and those that run slowly. The fast birds can reach
up to 45 miles an hour. Jackals love to eat ostrich, and they can reach speeds of up to 35-40 miles per
hour. A flock of ostrich will lay ~ 10 eggs (each mother only lays 1), but many rodents break into the eggs
and eat the fetus before they hatch.
Explain how each of the principles of Natural Selection are at work in the scenario above.
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EVIDENCE OF EVOLUTION
In the space below, provide an example of an adaptation and EXPLAIN how that adaptation helps the
species to survive or reproduce.
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For each type of evidence for evolution listed below, describe what it is, and how it shows change over
time in a species.
Fossil Record
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Homologous structures
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Analogous Structures
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Vestigial Structures
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Adaptation
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Comparing Embryos
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[1pt] In the following list of traits, circle the homologous structures.
Human Leg
Ant Antennae
Bear Front Leg
Bat Wing
Dog Hind Leg
Explain your answer above.
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Arrange the layers in the picture above in order of YOUNGEST to OLDEST
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Youngest
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OLDEST
How did you determine whether J or W was older?
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Yesterday you received a sample of radioactive Unobtanium which decays into the less awesome
Obtanium. Yesterday you measured the amount of Unobtanium to be 2048 grams. Today (24 hours later)
you find, to your dismay, that the sample of Unobtanium only contains 8g of Unobtanium with the rest
being Obtanium. What is the length of 1 Halflife for Unobtanium?
A. How Many Half Lifes have occurred?
B. How long is the half-life of Unobtanium?
MECHANISMS OF EVOLUTION
Explain how sexual selection can work against natural selection’s goal to increase survival of the
organism.
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A small population of mice inhabits a remote valley filled with grasses and grains. During a thunderstorm,
a bolt of lightning sets the dry grass on fire. The fire rages, and consumes the entire valley including the
entire population of mice. Which mechanism of evolution does this scenario demonstrate?
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How do you know?
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The Lyrebird is a very amazing species of bird. When it is the mating season, the male must impress the
female by singing the most complex song that it can sing. Which mechanism of evolution does this
scenario demonstrate?
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How do you know?
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For each of the mechanisms of evolution below explain how they work.
Natural Selection
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Sexual Selection
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Genetic Drift
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Non Random Mating
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Gene Flow
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