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WorksheetsEvolution CSA Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Medium furred bunnies outnumber naked bunnies in a population by 5 to 1. Medium fur is a dominant trait, and an advantage in the environment's temperature. The trait for no fur does NOT disappear in the population because --
a)
natural selection cannot act on every bunny
b)
the trait can still be passed on by heterozygous bunnies
c)
Medium furred bunnies evolved from naked bunnies and the ancestor continues to survive
d)
naked bunnies are smaller
2.
Natural selection can result in a change in a population if it selects for or against --
a)
a trait that promotes the survival of the fittest
b)
A recessive trait
c)
All traits
d)
dominant traits
3.
In order for a new recessive allele to be selected for or against by nature, it must --
a)
be inherited by at least 10% of a population
b)
be inherited by at least 50% of a population
c)
appear in the genotype of an individual
d)
be expressed in the phenotype of anindividual
4.
Natural selection favors --
a)
variations that result in dominant alleles
b)
variations that result in recessive alleles
c)
variations in adaptations
d)
All of the choices
5.
A hypothesis states that the book "5th Wave" wasn't fiction and wiped out 90% of the human species. Why didn’t all humans die?
a)
All humans were frozen
b)
Some humans migrated away from danger
c)
Plants closed all their flowers and no longer needed sunlight
d)
Due to the great diversity of living organisms, some individuals were able to survive
6.
Having an adaptation that maximizes the survival of the species is based on --
a)
possession of adaptations developed through use
b)
natural selection
c)
lack of competition within the species
d)
choices made by plant and animal breeders
7.
Which statement about the members of a population that are best adapted to survive in their environment is consistent with the theory of natural selection?
a)
Those members that transmit characteristics that are not beneficial.
b)
Those members that produce fewer offspring than others in the population.
c)
Those members of a population that live long enough to reproduce.
d)
Those members that will pass on unfavorable changes in the species.
8.
What are the 5 main points of natural selection?
a)
Overproduction, adaptation, variation, descent with modification
b)
Overproduction, adaptation, variation, struggle to survive, descent with modification
c)
Overproduction, mutation, variation, descent with modification
d)
Underproduction, mutation, variation, descent with modification
9.
A farmer used a new pesticide (chemical that kills bugs), and nearly all of the offspring of the insects were immune (not killed). Why were the offspring immune to the pesticide?
a)
The pesticide caused mutations in all the insects that provided immunity.
b)
The insects that ate the pesticide slowly developed immunity.
c)
The pesticide destroyed predators of the insects.
d)
The insects inherited an adaptation that allowed them to survive.
10.
It has been predicted that over the next 300,000 years, the climate in Madera will change dramatically in that the ground will be covered in snow for 6 months of the year. According to this climate change, what might be the most predictable change to the dark and light furred rabbit population for survival?
a)
The rabbit population would gradually get scarier
b)
The rabbit population would gradually get faster
c)
The rabbit populations’ fur color would gradually get lighter
d)
The rabbit population would gradually become extinct due to lack of water
11.
The fossil record shows that two-thirds of burrowing lizard species survived a mass extinction. What is the best conclusion one could draw from this event?
a)
The surviving species found new ways to survive the change in environments.
b)
Diversity among lizard species’ behaviors increased the chance that some species would survive.
c)
Some species went extinct because they couldn’t compete for resources.
d)
Lizards had better adaptations than other groups when environment changed.
12.
As diversity of a population increases, the expected outcome of natural selection is --
a)
all members can survive
b)
no members can survive major changes
c)
some members survive major changes in the environment
d)
all members that become highly specialized survive
13.
According to the theory of natural selection, individuals who survive are the ones best adapted to the environment. The survival is due to the --
a)
possession of adaptations developed through use
b)
possession of inherited adaptations that maximize fitness of the species
c)
lack of competition within the species
d)
choice made by plant and animal breeders
14.
Why are transitional fossils important to evolution?
a)
provide an evolutionary link between 2 species.
b)
shows how fossils have migrated
c)
show hybridization between organisms
d)
provide evidence for different species on Earth
15.
Humans bred dogs from wolves over a long period of time. This is evidence of...
a)
artificial selection
b)
natural selection
c)
descent with modification.
d)
overproduction
16.
Why are mutations important?
a)
Mutations cause death in the organism in which they develop
b)
Mutations create genetic variation needed for a population to evolve
c)
Mutations create benefits for the individual, but not for the population
d)
Mutations create Hardy-Weinberg equilibrium within a population
17.
Individuals that are well adapted to their environment will survive and produce...
a)
fewer mutations.
b)
more offspring (fitness)
c)
stronger genes.
d)
better traits.
18.
When the environmental conditions change, natural selection will select individuals that---
a)
mutate in response to changing conditions.
b)
have the traits that are most beneficial.
c)
move to a different environment.
d)
join members of another species in the area.
19.
Which statement best describes how variation is important for the survival of a species that exists in a changing environment?
a)
Variation rates increase due to new selective pressures.
b)
Heritable variation increases as a result of environment changes.
c)
The amount of variation increases due to increased mutation rates.
d)
Variation increases the likelihood that some individuals will survive.
20.
Which statement regarding vestigial organs (structures) is the most accurate?
a)
They are tiny structures that developed for unknown reasons.
b)
They are structures that once were fully developed and functional in an ancestral species.
c)
They are found only in vertebrates.
d)
They are found only in embyos.
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