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Worksheets8th Grade Unit #4 Classification of Living Things Review
Total questions: 39
Worksheet time: 57mins
adaptation
variation
homologous structure
vestigial structure
The Theory of Evolution by natural selection states that certain organisms are more likely to survive and reproduce than others. What do these organisms possess in order to survive?
similar characteristics
adaptive traits
large body size
ability to reproduce sexually
use and disuse
homologous structures
common ancestry
acquired characteristics
better traits
stronger genes
more offspring
fewer mutations
artificial selection
adaptation
acquired characteristics
tendency towards perfection
More offspring are produced than can possibly survive.
The organisms that are the fittest are always largest and strongest.
The number of offspring is not related to fitness.
Acquired characteristics that are inherited are the cause of evolution.
A change in a DNA sequence that affects genetic information
mutation
fitness
transformation
have the ability to interbreed. have the ability to interbreed.
acquired traits through use and disuse.
all eat the same type of food.
descended from a common ancestor.
What is meant by the "species level?"
kinds or types of the same organisms
kinds or types of different organisms
any organism
no answer is given
Adaptations in a population may lead to the evolution of new species. Which word is associated with the process of evolution?
extinction
change
stability
continuity
The scientist who came up with the current classification system
Darwin
Newton
Mendel
Linnaeus
The taxonomic level that would include the MOST number of species
class
kingdom
phylum
genus
A ________ can be used to classify organisms based on characteristics.
punnet square
phylogenetic chart
trophic pyramid
dichotomous key
contain more nuclei than cells
need an energy source but cells do not
cannot reproduce outside of cells
cannot mutate but cells can
Dichotomous keys are used to identify unknown organisms based upon behavioral and/or physical characteristics. "Dichotomous" means having _______ choices.
1
2
3
4
What is taxonomy?
The study of naming and classifying things.
Preserving dead organisms.
The science of paying your taxes.
The process by which populations change over time.
Why do we classify living things?
To keep information private.
To make finding information easier.
To confuse people.
To make animals healthier.
What is the smallest and most specific group in the eight-level classification system?
Genus
Domain
Kingdom
Species
Taxonomy is the study of just plants.
True
False
What is the largest and most general group in the eight- level classification system?
Family
Kingdom
Domain
Species
To what genus does a banana tree belong to?
Musa
Ficus
Bamboosa
Paradisicum
In a scientific name, what does the SECOND name identify?
Kingdom
Genus
Species
Domain
In a scientific name, what group does the FIRST name identify?
Domain
Species
Kingdom
Genus
Who is Charles Darwin
A pastor
A naturalist
A bird
A doctor
Which statement best describes Natural selection?
The best adapted organisms survive and reproduce.
There are a set amount of organisms.
Organisms only change through genetic engineering.
Organisms slowly adapt to their surroundings over a lifetime.
Which set of Islands had a strong influence on Darwins ideas?
Hawaii
Galapagos
Samoa
Florida Keys
What is Darwin famous for studying?
Penguins
Beagles
Fishes
Finches
What is the mechanism by which species adapt to their environment in order to survive?
artificial selection
natural selection
development
What set Darwin's theory of natural selection apart from the theories that scientists proposed before him?
No scientist had such formal training
Darwin based his theory on a wealth of evidence
Darwin based his theory purely on speculation
How do the finches of the Galapagos illustrate natural selection?
Birds on every island have beaks uniquely suited to their food source
The birds that were afraid of humans survived and reproduced
The finches have adapted to building their nests of discarded plastic
an inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.
adaptation
natural selection
niche
competition
What is a common ancestor?
An animal that has a lot of offspring.
An animal from which two or more different species evolved.
An animal that is related to many other species.
An animal that's good at escaping from predators.
What is least likely to be an example of a variation within a species?
height
hair color
eye color
number of legs
In the phrase "survival of the fittest," the term "fittest" refers to:
The best-adapted organisms
The biggest organisms
The smartest organisms
The fastest organisms
When nature "selects" a variation, that means that the trait:
Gets passed along from generation to generation
Causes the population to shrink
Has brought about a new species
Helps prey escape predators
Dogs are an example of:
A common ancestor
Selective breeding
The natural pace of evolution
Extinction rates rising
