WorksheetsCh 17/19 - The History of Life
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
________ are scientists who collect and study fossils.
a)
Geologist
b)
Paleontologist
c)
Archaeologist
d)
Seismologist
2.
All information about past life is called the _________.
a)
Fossil Record
b)
Fossil Index
c)
Fossil Story
d)
Fossil Point
3.
Over ___% of all species that have lived on Earth have become extinct,
a)
66
b)
77
c)
88
d)
99
4.
Most fossils form in ________ rock.
a)
Igneous
b)
Metamorphic
c)
Sedimentary
d)
Sandy
5.
How many different methods of dating fossils were discussed in class?
a)
1
b)
2
c)
3
d)
4
6.
In _____ dating, the age of a fossil is determined by comparing its placement with that of fossils in other layers of rock
a)
online
b)
relative
c)
radioactive
d)
rushed
7.
True or False: Older rock layers can be found above the younger rock layers.
a)
True
b)
False
8.
An __________ fossil is a species that is recognizable and that existed for a short period but had a wide geographic range.
a)
easy
b)
amazing
c)
exact
d)
index
9.
True or False: Relative dating allows scientists to estimate the age of fossils.
a)
True
b)
False
10.
True or False: Radioactive dating allows scientists to estimate the age of fossils.
a)
True
b)
False
11.
__________ dating is the use of half-lives to determine the age of a sample.
a)
Online
b)
Relative
c)
Radioactive
d)
Rushed
12.
A ____________________ is the length of time required for half of the radioactive atoms in a sample to decay.
a)
half-life
b)
decay-meter
c)
short-life
d)
half-span
13.
Paleontologists use a scale called the ___________ to represent evolutionary time.
a)
Earth's stopwatch
b)
Geologic Time Scale
c)
Geography Clock
d)
Paleontology Preview
14.
The basic divisions of the geologic time scale are _______ and ________.
a)
eons, years
b)
months, day
c)
eras, periods
d)
periods, eons
15.
Geologic time begins with __________ Time, which covers about 88% of Earth’s history.
a)
Mesozoic
b)
Paleozoic
c)
Cenozoic
d)
Precambrian
16.
How many eras are present in Geologic Time?
a)
1
b)
2
c)
3
d)
4
17.
Eras are subdivided into _________
a)
Periods
b)
Epochs
c)
Eons
d)
Decades
18.
___________ refers to large-scale evolutionary patterns and processes that occur over long periods of time
a)
Microevolution
b)
Coevolution
c)
Macroevolution
d)
Continued Evolution
19.
_____________ is the process by which a single species or a small group of species evolves into several different forms that live in different ways.
a)
Adaptive Radiation
b)
Coevolution
c)
Punctuated Equillibrium
d)
Convergent Evolution
20.
The process by which unrelated organisms come to resemble one another is called _________________.
a)
Adaptive Radiation
b)
Coevolution
c)
Punctuated Equillibrium
d)
Convergent Evolution
21.
The process by which two species evolve in response to changes in each other over time is called ____________.
a)
Adaptive Radiation
b)
Coevolution
c)
Punctuated Equilibrium
d)
Convergent Evolution
22.
______________ is a pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change.
a)
Coevolution
b)
Adaptive Radiation
c)
Punctuated equilibrium
d)
Convergent Evolution
23.
True or False: There is a large amount of evidence that supports exactly how Earth was formed
a)
True
b)
False
24.
True or False: It took millions of years for Earth to form.
a)
True
b)
False
25.
During Earth's formation, the most dense elements formed the planet’s __________.
a)
Crust
b)
Mantle
c)
Core
d)
Atmosphere
26.
During Earth's formation, the least dense elements formed the first _____________.
a)
Crust
b)
Mantle
c)
Core
d)
Atmosphere
27.
True or False: Earth's first atmosphere was very similar to the atmosphere of today.
a)
True
b)
False
28.
About 3.8 billion years ago, Earth’s surface cooled enough for ___________ to remain a liquid.
a)
Air
b)
Water
c)
Hydrogen
d)
Nitrogen
29.
___ and ____ simulated Earth's early atmosphere in the lab.
a)
Miller, Urey
b)
Miller, Darwin
c)
Darwin, Urey
d)
Urey, Wallace
30.
In certain conditions, large organic molecules form tiny bubbles called ___________.
a)
Protein Bubbles
b)
Proteinoid Microspheres
c)
Sphere Bubbles
d)
Proteinoid Macrospheres
31.
Microscopic fossils, or ___________, of unicellular prokaryotic organisms resembling modern bacteria have been found in rocks over 3.5 billion years old.
a)
index fossils
b)
microfossils
c)
macrofossils
d)
tiny fossils
32.
True or False: The first life forms on Earth evolved without oxygen.
a)
True
b)
False
33.
True or False: The addition of oxygen was beneficial to all life present on Earth.
a)
True
b)
False
34.
The _________ proposes that eukaryotic cells arose from living communities formed by prokaryotic organisms.
a)
Endoscopic Theoty
b)
Endosymbitoic Theory
c)
Exosymbiotic Theory
d)
Exoterric Theory
35.
According to the endosymbiotic theory, eukaryotic cells formed from a symbiosis among several different ______________.
a)
eukaryotes
b)
prokaryotes
c)
protactics
d)
fungi
100 %
