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WorksheetsChapter 19
Total questions: 19
Worksheet time: 11mins
Name
Class
Date
1.
What is one thing paleontologists cant learn about from the fossil record?
a)
The structure of an organism.
b)
The genetic information of an organism.
c)
The way organisms lived.
d)
The environment in which organisms lived
2.
In what type of rocks would you find fossils?
a)
sedimentary
b)
igneous
c)
shale
d)
volcanic
3.
What is the division of geologic time from largest to smallest?
a)
eons, eras, periods
b)
eras, eons, periods
c)
periods, eras, eons
d)
eons, periods, eras
4.
What types of fossils would you find in the Precambian?
a)
trilobites
b)
prokaryotes
c)
eukaryotes
d)
invertebrates
5.
Two species evolving in response to change over time is an example of
a)
gradualism.
b)
convergent evolution.
c)
adaptive radiation.
d)
coevolution.
6.
A species that evolves at a slow and steady pace is experiencing
a)
gradualism.
b)
convergent evolution.
c)
adaptive radiation.
d)
coevolution
7.
A species that has evolved into several different species that live in different ways has experienced
a)
gradualism.
b)
convergent evolution.
c)
adaptive radiation.
d)
coevolution.
8.
What is sedimentary rock formed from?
a)
soft parts of organisms
b)
wood, shell and bone
c)
hard parts of organisms
d)
sand, silt, and clay.
9.
The process of single species that becomes extinct and a slow and steady rate it is an example of
a)
gradualism.
b)
background extinction.
c)
mass extinction
d)
punctuated equilibrium
10.
An event where many species become extinct in a relatively short time period is known as
a)
background extinction.
b)
Armageddon.
c)
mass extinction.
d)
punctuated equilibrium.
11.
When balance is disrupted by brief periods of rapid change.
a)
convergent evolution
b)
adaptive radiation
c)
gradualism
d)
punctuated equilibrium
12.
The time required for half of a radioactive sample to decay is referred to as the element's
a)
radiometric date.
b)
period.
c)
relative date.
d)
half-life.
13.
The process responsible for separating geographic areas is known as
a)
volcanic eruptions.
b)
continental drift.
c)
mountain formation.
d)
big bang.
14.
The theory that hypothesizes that all of the continents were once one superconitinent is known as
a)
Theory or Relativity.
b)
Theory of Evolution.
c)
Theory of Plate Tectonics.
d)
endosymbiotic theory
15.
If a clade is to survive, its rate of speciation must be ___________________ it's rate of extinction.
a)
greater than or equal to
b)
less than or equal to
16.
Scientists use unstable elements that decay, called _________ elements, to determine the actual age of a fossil.
a)
radioactive
b)
cation
c)
anion
d)
petrified
17.
In layers of sedimentary rock, the _________ layer is usually at the bottom. Each higher layer is _________ than the layers below it.
a)
oldest, younger
b)
youngest, older
c)
youngest, younger
d)
oldest, older
18.
Fossils used to help geologists match rock layers
a)
trace fossils
b)
index fossils
c)
carbon film
d)
petrified fossils
19.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
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