7th Grade Science
Classification
Review
#1
What is a dichotomous key?
A chart that classifies
A: organisms according
to their DNA
A tool used to examine
B: organisms and their
structures to help
identify the organism
C: Nether
D:
Both
B. A tool used to
examine organisms
and their structures
to help identify the
organism
#2
Why do scientists classify organisms?
To organize living
A: things with similarities
into groups
Deciding which
B: organisms will survive
and reproduce
C: Neither
D:
Both
A. To organize
living things with
similarities into
groups
#3
Using the dichotomous key, identify the name of Bird X
A: Certhidea
B:
Platyspiza
C: Geospiza
D:
Camarhynchus
B. Platyspiza
#4
Using the dichotomous key, identify the name of Bird Z
A: Certhidea
B:
Platyspiza
C: Geospiza
D:
Camarhynchus
D. Camarhynchus
#5
What is natural selection?
Process by which
organisms that are better
A: suited to their environment
are able to survive and
reproduce.
B:
The process by which
scientists select
organisms from nature
C:
D:
None
Both
A. Process by which
organisms that are
better suited to their
environment are able to
survive and reproduce.
#6
The Galápagos Islands are
famous for their many
different species of finches all
descended from a common
ancestor.
Which of the terms below
would explain these
differences?
A: Natural selection
B:
Selective breeding
C: Natural breeding
D:
None of these
A. Natural selection
#7
What is selective breeding?
Movement of
A: organisms from one
place to another
Humans choose
organisms of the same
B: species to create
offspring with special
traits
C: Both
D:
Either
B.
Humans choose
organisms of the same
species to create offspring
with special traits
#8
Two processes that affect
genetic traits.
A: Mitosis and Meiosis
B:
Extraction and extinction
C: Selective breeding and
D:
Migration and
hybernation
natural selection
C. Selective breeding
and
natural selection
#9
What is migration and why do animals migrate?
A:
The movement
of organisms
from one place
to another to
insure survival
C: Neither
Organisms remaining
in one location as a
B: means of insuring
survival
D:
Both
A. The movement of
organisms from one
place to another to
insure survival
#10
Monarch butterflies
flying from Canada to
Mexico is an example of
____________.
A: Natural selection
B: Expedition
C: Migration
D:
None of these
C. Migration
#11
What causes
animals to be
diverse or
different from
each other?
Adapting to their
A: environment is not
important
B: They must adapt to their
C: Both
D:
environment
Neither
B.
They must adapt
to their
environment
#12
A chameleon has the
ability to change
colors when needed.
How does this
characteristic help it
to survive?
It helps the chameleon
A: to blend in with its
background
It helps to insulate the
B: chameleon from cold
weather
C: It allows it attract other
D:
chameleons
None of these
A. It helps the
chameleon to blend
in with its
background.
#13
A chameleon has the
ability to change colors
when needed.
Which of these must be
true in order for
natural selection to
influence this behavior?
The behavior must
A: attract other
chameleons
The behavior must
B: affect the chameleon’s
likelihood of survival
The behavior must
C: occur only during
certain seasons
D:
None of these
B. The behavior
must affect the
chameleon’s
likelihood of survival
#14
The skin of the
fire salamander secretes a nerve toxin that
can paralyze a potential predator. It also
has black and yellow markings.
What inference can be made about the
fact that this salamander has black and
yellow markings?
A:
It is trying to
attract other
salamanders
C: Neither
Its colorings are a
B: warning to hungry
predators to stay
away.
D:
Both
B. Its coloring serve as a
warning to hungry
predators to stay away.
Which would be the best way
to organize information when
classifying animals according
to animal group and recorded
number extinct.
#15
Line Graph
Bar Graph
Data Table
A: Bar Graph
B: Line Graph
C: Data Table
D:
All of these
C. Data Table
#16
Which of the following
characteristics in cattle is
most likely to have
occurred because of
selective breeding done
by humans?
Cows that produce
A: more milk
B: Cows that eat grass
C: Cows that are not
D:
domesticated
Both
A. Cows that
produce more
milk
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