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The History Of Life On Earth Part 2 Of 2
Test Description: Part 2 of 2
Instructions: Answer all questions to get your test result.
1) The degree of variation of organisms within an ecosystem, biome, or entire planet is called
A
biological diversity
B
climate diversity
C
ecological diversity
D
biome diversity
2) What adaptations were necessary for marine organisms to evolve into land-dwelling organisms?
A
neither A or B
B
skin that could prevent drying out
C
the ability to breathe air
D
both A and B
3) Why was the development of proto-amphibians so significant to life on early Earth?
A
Proto-amphibians were the first organisms to reproduce sexually.
B
Proto-amphibians contributed huge amounts of oxygen to the atmosphere.
C
Proto-amphibians were the first organisms with bilateral symmetry.
D
Proto-amphibians were the first organisms not confined to a water environment.
4) A scientist finds a fossil of an organism with porous skin that would enable the organism to live partly in water and partly on land. This organism is likely a(n)
A
insect
B
amphibian
C
arthropod
D
reptile
5) Suppose you find a fossil of a reptile-like organism from 150 million years ago, but its tail appears to be much shorter than that of other reptile fossils from this time period. Some body parts have feather-like extensions. What could this be?
A
insect
B
turtle
C
bird
D
mammal
6) What is episodic speciation?
A
a slow, gradual decrease in species over time
B
an explosion of new species that occurs after a major extinction event
C
a decrease of species because of an infectious disease
D
a slight increase of species in a healthy ecosystem
7) Which is a reasonable statement about the asteroid impact 65 million years ago?
A
Surviving organisms were able to diversify and spread.
B
It was the largest asteroid impact in the solar system.
C
It caused birds to evolve from dinosaurs.
D
This event immediately increased biodiversity.
8) Which of these is written in the correct order of appearance on Earth (from earliest to most recent)?
A
prokaryotes; photosynthesizers; eukaryotes; multicellular life
B
eukaryotes; photosynthesizers; prokaryotes; multicellular life
C
prokaryotes; eukaryotes; multicellular life; photosynthesizers
D
prokaryotes; eukaryotes; photosynthesizers; multicellular life
9) The Cambrian explosion is a good example of
A
gradual extinction
B
high biological diversity
C
an evolutionary tree diagram
D
mass extinction
10) When did modern humans first appear?
A
100,000 years ago
B
10,000 years ago
C
200,000 years ago
D
150,000 years ago
11) How were organisms in the genus Homo different from other mammals?
A
They had fully functional lungs.
B
They had body hair.
C
They had large brain capacity.
D
They had bilateral symmetry.
12) Which of these organisms most recently had a common ancestor with modern humans?
A
dog
B
chimpanzee
C
Homo erectus
D
bear
13) Which is a possible explanation for the large numbers of dire wolves found in the La Brea Tar Pits?
A
The wolves hunted in packs, and many of them would become stuck at once.
B
Evacuation techniques are designed to locate wolves, so more of them are found than other animals.
C
The wolves were more easily trapped in the tar than other animals.
D
There were more dire wolves alive in the Ice Age than any other type of animal.
14) Where are the La Brea Tar Pits located?
A
in New York
B
in Los Angeles
C
in San Francisco
D
in New Orleans
*select an answer for all questions
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