WorksheetsUnit 8
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
What is natural selection?
a)
the better adapted organism survives and reproduces
b)
species could be wiped out by a single change to the environment.
c)
HUMANS interfere with breeding because they want certain traits in a organism like a dog, pig, corn
d)
Chronological collection of life's remains in sedimentary rock layers
2.
Which of the following describes the importance of genetic variation to natural selection.
a)
It makes the species exactly the same
b)
Without genetic variation species could be wiped out by a single change to the environment
c)
Genetic variation is what helps organisms reproduce
d)
Genetic variation is what makes the organism the "fittest" and survives
3.
What is selective breeding?
a)
Chronological collection of life's remains in sedimentary rock layers
b)
The better adapted organism survives and reproduces
c)
Without genetic variation species could be wiped out by a single change to the environment.
d)
HUMANS interfere with breeding because they want certain traits in a organism like a dog, pig, corn
4.
What is extinction?
a)
DNA from parents that allows for survival
b)
A term that typically describes a species that no longer has any known living individuals.
c)
Chronological collection of life's remains in sedimentary rock layers
d)
HUMANS interfere with breeding because they want certain traits in a organism like a dog, pig, corn
5.
What is a fossil record?
a)
Chronological collection of life's remains in sedimentary rock layers
b)
A term that typically describes a species that no longer has any known living individuals.
c)
the better adapted organism survives and reproduces
d)
a Trait (Wings, Thick Fur, Camouflage, Hibernation) that allows the animal to survive over time
6.
Which is a body fossil?
a)
Egg Shell
b)
Tooth
c)
Foot Print
d)
Nests
7.
Which is a trace fossil?
a)
Tooth
b)
Bone
c)
Snail shell
d)
Nests
8.
What is a desired trait
a)
DNA from parents that allows for survival
b)
the better adapted organism survives and reproduces
c)
HUMANS interfere with breeding because they want certain traits in a organism like a dog, pig, corn
d)
A term that typically describes a species that no longer has any known living individuals.
9.
Which best describes natural selection?
a)
Random assortment of genes results in better characteristics in the following generations
b)
Only the largest and strongest survive
c)
The best adapted individuals survive and reproduce, contributing the most to the next generation
d)
Some live and some die in each generation
10.
What is mimicry?
a)
an adaptation that allows mammals to breathe under water
b)
an adaptation that allows species to blend with their surroundings
c)
an adaptation that allows one species to resemble another species
d)
an adaptation that allows bacteria to resist penicillin
11.
The body of an animal is more likely to be fossilized if
a)
it is left on the surface of the ground
b)
does not contain bones or hard parts
c)
it is covered with sediment soon after death
d)
none of the above
12.
Whales live in the ocean. They do not have legs, but they do have a pelvis with small leg bones attached to it. This is evidence that:
a)
Whales are not well adapted to ocean life.
b)
Whales do not have homologous structures
c)
Whales evolved from animals that once lived on land
d)
Whales evolved from some type of fish
13.
If the top layer is layer 1 and the bottom layer is layer 5, which layer contains the oldest fossils?
a)
Those in layer 5.
b)
Those in layer 1.
c)
Those in layer 2.
d)
Those in layer 4.
14.
Fossils are usually found in
a)
metamorphic rock
b)
igneous rock
c)
sedimentary rock
d)
oceans
15.
A trace fossil tells us
a)
what an animal looked like
b)
what a plant looked like
c)
how an organism died
d)
how an organism lived
16.
Studying the strata of rock can tell us
a)
whether climate has changed in an area
b)
if a species changed over time
c)
if a species became extinct
d)
If a biome changed over time
e)
all of the above
17.
Evidence that some species have changed over time can be found in
a)
The fossil record
b)
a single individual fossil
c)
rocks
d)
living fossils
18.
Two fossil organisms found close together in the same layer or strata of rock may tell us that
a)
The two organisms lived in different habitats
b)
the two organisms lived during the same time period
c)
One organism changed into the other
d)
One organism ate the other organism
19.
What is an adaptation?
a)
HUMANS interfere with breeding because they want certain traits in a organism like a dog, pig, corn
b)
a trait that allows the animal to survive over time
c)
DNA from parents that allows for survival
d)
Some live and some die in each generation
20.
Charles Darwin believed that
a)
that reproduction had no role in evolution
b)
organisms that had the least beneficial trait will prosper
c)
random mutations that made an organism more fit for its environment would survive and pass on the mutations
d)
mutations happened in response to the need of the environment.
21.
Why do three zebras at the zoo not have the same pattern of stripes on their bodies.
a)
Genetic Variation
b)
Adaptation
c)
Fossils
d)
Desired Traits
22.
Which of the following statements about selective breeding is false?
a)
Humans breed organisms to perpetuate desirable characteristics
b)
Selective breeding is always good for the organisms involved
c)
Selective breeding results in healthier better tasting crops
d)
Humans have been selectively breeding other organisms for thousands of years
23.
What is a fossil?
a)
An extinct species
b)
An organisms that lived long ago and is still alive today
c)
The preserved remains of a once-living organism
d)
A type of rock
24.
What traits would be the fittest for a hot, desert habitat?
a)
light colors that reflect the sun, needing less water
b)
methods for cooling themselves, being nocturnal
c)
waxy surface on plants to conserve moisture, padded feet to protect against hot sand
d)
All of the above
25.
What is speciation?
a)
when one species suddenly turns into another species
b)
When one species dominates another species until the weaker species becomes extinct
c)
sudden variations in a population that occur randomly
d)
variations in a population that increase in frequency to the point in which the population becomes a separate species.
26.
In the rock pocket mice activity, why did the number of dark-fur mice increase dark rocks?
a)
The mice knew that being dark was safer so they just turned dark.
b)
The dark-colored mice increased because they were smarter than the light-colored mice.
c)
The dark mice had an advantage over the light-colored mice on the dark background. They reproduced and passed on the trait.
d)
The light mice probably moved to a different rock, so they were not counted.
27.
What is a way of hiding by looking the same as the background?
a)
chromosome
b)
feature
c)
distribution
d)
camouflage
28.
An adaptive trait depends on the (fill in the blank)
a)
enviornment
b)
species
c)
predation
d)
natural selection
29.
Differences in traits are called:
a)
natural selection
b)
genetic variations
c)
adaptations
d)
artificial selection
30.
What can you infer about these structures?
a)
they are vestigial structures
b)
they are analogous
c)
they are homologous
d)
they have nothing to do with each other
31.
A species could go extinct if:
a)
food becomes more plentiful.
b)
members of the species have adaptations to enhance survival.
c)
the environment changes drastically and no one can adapt.
d)
there is less competition for resources.
32.
Which situations are an example of Natural Selection?
a)
Takes place over a long period of time
b)
Process happens due to environmental activity
c)
Organisms do not choose to thrive but rather they are selected because they are best adapted to the environment
d)
Excessive warmer temperatures in a region have caused rabbits with longer fur to slowly disappear
e)
Takes place over a short period of time
33.
Which statement best summarizes Darwin's theory of natural selection?
a)
Organisms produce more offspring than can survive.
b)
Organisms best suited for the environment will survive and reproduce.
c)
Organisms vary in their physical traits and some traits are heritable.
d)
Organisms with the most common phenotype survive.
34.
Which situations are an example of Selective Breeding?
a)
Takes place over a short period of time
b)
A Labradoodle is created by scientists to be hypoallergenic, yet still look similar to a Labrador
c)
Apples have gotten much larger over the last 30 years due to customer demand
d)
Humans have a decision in the outcome of the offspring
e)
Takes place over a long period of time
35.
Which of the statements is true?
a)
A higher percentage of dark moths were recaptured in the country compared to dark moths recaptured in the city.
b)
A higher percentage of light moths were recaptured in the city compared to dark moths recaptured in the city.
c)
A higher percentage of light and dark moths were recaptured in the country compared to light and dark moths recaptured in the city.
d)
A higher percentage of light moths were recaptured in the country compared to dark moths recaptured in the country.
36.
Mammals have arms, wings, flippers and legs. These structures have different functions, but similar bone structure. What does this indicate?
a)
they have a common ancestor
b)
they are not related
c)
they have experienced convergent evolution
d)
none of the answers are correct
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