Evidence Of Evolution Review Question Preview (ID: 61687)


Review Of Whale Evolution, Embryology, Homologous Structure. TEACHERS: click here for quick copy question ID numbers.

evolution
a) populations of living things changing over time
b) leftover useless body parts that an organism inherited from an ancestor
c)
d)

species
a) the process of new species forming from old species 
b) organisms that can breed and produce fertile offspring
c)
d)

speciation
a) populations of living things changing over time
b) the process of new species forming from old species 
c)
d)

vestigial structures
a) leftover useless body parts that an organism inherited from an ancestor
b) organisms that can breed and produce fertile offspring
c)
d)

homologous structures
a) body structures that do the same thing and have the same structure
b) the process of new species forming from old species 
c)
d)

What is the relationship between the leg of a horse and the leg of a cat?
a) They are homologous structures because the bone structure is similar and comes from a common ancestor (forelimbs).
b) They are analogous structures because each does the same thing, but does not have the same type of structure.
c) They are vestigial structures because they don't have a function today.
d) None of these

By studying the DNA of organisms, scientists can _____________.
a) View the anatomy of fossils.
b) Determine what bones an animal has in its forelimbs.
c) See how closely related two species are.  
d) None of these.

Did the ancestors of modern horses have fewer toes or more toes than horses today?
a) fewer
b) more
c) the same number
d)

The study of embryology has shown scientists that _________________.
a) Mass extinctions have occurred throughout history.
b) The embryos of most vertebrates (animals with a backbone) are very similar early in development.  
c) DNA can be found in the fossil record.
d) The embryos of most vertebrates (animals with a backbone) are very different early in development.

Which of the following are evidence that evolution has happened and living things have changed over time?
a) DNA sequences
b) Homologous structures
c) Fossils
d) all of these

A gene mutation in a certain chameleon species allows the chameleon to blend in better and avoid predation.  What can be expected to happen in the next generation of this chameleon species?
a) the other chameleon species in the area will spontaneously develop the same mutation.
b) the offspring of this chameleon species will not blend in and be eaten by predators.
c) the mutated gene will become more common in the next generation of this chameleon species.
d) the mutated gene will become less common in the next generation of this chameleon species.

In class you looked at the timeline of whale evolution, what does the fossil evidence show us about the past ancestors of modern whales?
a) Their past ancestors had back legs.
b) The past ancestors of whales were mammals that walked on land.
c) At some point their past ancestors moved from land to water.
d) All of these

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