The flippers of a whale and the arms of a human are described as homologous structures because

They have a common evolutionary origin

There is little fossil evidence of the earliest forms of life because the organisms

did not have hard parts which would fossilise easily

An index fossil may be used for identifying

sedimentary rocks of the same age in different locations

Biogeography is the study of ...

the distribution of plants and animals in particular areas

Convergent evolution is ...

independent development of similar features in diff species

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Unit 4 Biology Evidence of Evolution

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1
The flippers of a whale and the arms of a human are described as homologous structures because
They have a similar function
They have a common evolutionary origin
They contain bones
Both organisms are mammals
2
There is little fossil evidence of the earliest forms of life because the organisms
decayed quickly in the oxygen-rich atmosphere
lived in water and were not preserved
did not have hard parts which would fossilise easily
evolved so quickly that they left few remains
3
This dog and human are both mammals and share similar bones. This photo is an example of...
Analogous structures
Transitional fossils
Index fossils
Homologous structures
4
An index fossil may be used for identifying
the age of rocks from the Jurassic period only
the absolute age of a sedimentary rock stratum
sedimentary rocks of the same age in different locations
the oldest rocks in a series of strata
5
A technique for determining the relative age of a fossil believed to be approx 60,000 years old
Uranium dating
Stratigraphy
Potassium-Argon Dating
Carbon-14 dating
6
Convergent evolution may produce similar structures in two different species. This may lead to
Homology
Divergence
Embryology
Analogy
7
Biogeography is the study of ...
the distribution of plants and animals in particular areas
fossil types and their relation to living organisms
islands and their distances from continents
mountain ranges and rivers
8
Convergent evolution is ...
splitting of an ancestral group into two different species
also known as adaptive radiation
independent development of similar features in diff species
responsible for the development of analogous structures
9
The strongest evidence for change over a long period of time comes from
Fossils
Embryo studies
DNA
Direct observation of modern day species
10
The evolution of a shark and dolphin are examples of
Adaptive radiation
Coevolution
Convergent evolution
Divergent evolution
11
Fossilisation of an organism is most likely to occur if the organism
has hard or bony structures
is covered by a flow of lava
is encased in very acid sediment
is soft-bodied
12
This fossil shows that birds evolved from a reptile-like ancestor. This is an example of...
All of the above
An index fossil
A transitional fossil
Analogous Structures
13
Which is an example of a vestigial structure?
Wings on a duck
Ears on a mouse
Human body hair
Pig heart
14
Animal fossils may form when...
An animal's tissue is replaced by harder minerals
All of the above
An animal is rapidly buried by sediment
An animal is buried on ocean floor, swamps, mud, tar pits
15
The distribution of the fossil remains is evidence of ...
Divergent evolution
Speciation
Natural selection
Continental drift

Unit 4 Biology Evidence of Evolution Flashcards | StudBud