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Diversity And Natural Selection
Test Description: Review for Unit 7
Instructions: Answer all questions to get your test result.
1) ____ are remains of life from an earlier time.
A
dlimestones
B
sedimentary rocks
C
variations
D
fossils
2) Which animal would you expect a dog’s genes and proteins to be the most like?
A
lion
B
bear
C
alligator
D
wolf
3) A scientist described two modern-day species as sharing a common ancestor. What does it mean when two species share a common ancestor?
A
It means that the two species share all the same traits.
B
It means that both species evolved from one species that lived in the past.
C
It means that the two species are actually the same species.
D
It means that one of the species evolved from other species.
4) Which of the following do some scientists believe shows evidence for evolution in living species?
A
homologous structures
B
analogous structures
C
all of the these
D
vestigial structures
5) Which of these answers correctly pairs a scientific discovery with the type of evidence for evolution that it represents?
A
fossilized bones, genetic evidence
B
developmental patterns, fossil evidence
C
DNA comparison, embryological evidence
D
unused hind limbs, structural evidence
6) Which is not a cause of variations to arise in a population?
A
competition for limited resources
B
random mutations in genes
C
rapid population increases
D
changes in the environment
7) Define natural selection.
A
A slight difference in an inherited trait of individual members of a species.
B
An inherited trait that increases an organism’s chance of surviving and reproducing in its environment.
C
A person who studies nature selectively.
D
Organisms with variations that help them survive in their environment, live longer, and go on to reproduce.
8) 2. Define adaptations.
A
A slight difference in a species.
B
The resemblance of one species to another.
C
An inherited trait that increases an organism’s chance of surviving and reproducing in its environment.
D
The breeding of organisms for desired characteristics.
9) Which of these statements best describes what Charles Darwin observed on the Galápagos Islands?
A
The finch population on each island was unique.
B
The finches could produce offspring only with finches from other islands.
C
The finches on the islands were the same as the finches in Ecuador.
D
The finches on the islands ate seeds and nuts but no insects.
10) Which of the following statements best describes why birds are one of the only descendants of the dinosaurs that live today?
A
Bird are able to fly, dinosaurs could not
B
The statement is false birds are descendants of dinosaurs
C
Bird feathers act as a better shield against the environmental changes than dinosaurs skin
D
Bird’s ancestors were able to adapt to the environmental changes that caused the extinction of the dinosaurs
*select an answer for all questions
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