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Worksheets8th Grade Evolution Unit Study Guide
Total questions: 13
Worksheet time: 7mins
Differences between members of the same species are called...?
Traits/mutations
Homologous structures
Adaptation
Natural selection
What are the main ways that a new species forms?
Triats
Mutations
Natural selection
Homologous structures
Why do scientists combine evidence from fossils, body structures, early development, DNA, and protein structures?
To find common mutations
Find new traits
To find a common ancestor
Find new adaptations
Which term refers to similar structures that related species have inherited from a common ancestor?
Homologous structures
Similar traits
Natural selection
Similar mutations
A trait that helps an organism survive and reproduce is called a(n) ______?
Mutation
Natural selection
Common ancestor
Adaptation
Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?
Mutations
Natural selection
Adaptations
Homologous structures
How does natural selection lead to evolution?
A single change/mutation occurs and leads to a new species
Different species reproduce to create a new species
Multiple changes/mutations are passed down through generations that lead to a new species
New species appear out of thin air
What is the answer format to a question about homologous structures?
The ____ bones matches with __ and __.
In the (early/middle/late) stage the ____ and ___ have common ____, ____ , and ____ this proves that they have common ancestors.
The ____ lost/gained a ____ during development indicating a change in evolution because, ____________________.
What is the answer format to a question about similarities through early age embryo development between two species?
The ____ lost/gained a ____ during development indicating a change in evolution because, ____________________.
The ____ bones matches with __ and __.
In the (early/middle/late) stage the ____ and ___ have common ____, ____ , and ____ this proves that they have common ancestors.
What is the answer format to a question about changes in the same animal embryo development?
The ____ lost/gained a ____ during development indicating a change in evolution because, ____________________.
The ____ bones matches with __ and __.
In the (early/middle/late) stage the ____ and ___ have common ____, ____ , and ____ this proves that they have common ancestors.
Which of these might be a good response to a question about homologous bone structure?
The fish lost its curve during development indicating a change in evolution because it makes it easier to move in the water.
In the early stage, the pig and chicken have common head shapes, ear holes, and tail this proves that they have common ancestors.
The orange bone matches with the A and F bones.
Which of these might be a good response to a question about similarities in embryo development between two species?
The orange bone matches with the A and F bones.
In the early stage, the pig and chicken have common head shapes, ear holes, and tail this proves that they have common ancestors.
The fish lost its curve during development indicating a change in evolution because it makes it easier to move in the water.
Which of these might be a good response to a question about evolution through embryo growth?
The fish lost its curve during development indicating a change in evolution because it makes it easier to move in the water.
In the early stage, the pig and chicken have common head shapes, ear holes, and tail this proves that they have common ancestors.
The orange bone matches with the A and F bones.
