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WorksheetsBio/Int3#4review
Total questions: 18
Worksheet time: 18mins
Name
Class
Date
1.
Each of the following is a density dependent limiting factor EXCEPT
a)
competition
b)
temperature
c)
crowding
2.
Which of the following is a density-independent limiting factor?
a)
predator/prey relationships
b)
the eruption of a volcano
c)
parasitism and disease
3.
After a natural disaster such as a hurricane or drought, a population can
a)
can be mostly killed off
b)
will experience exponential growth
c)
will reach it's carrying capacity
4.
Demography is the scientific study of
a)
parasitism and disease
b)
modernized countries
c)
human populations
5.
The human population reached exponential growth just after
a)
agriculture began
b)
plowing and irrigation began
c)
the industrial revolution began
6.
The anticipated human population by the year 2050 is about
a)
7.8 billion
b)
9 billion
c)
9 trillion
7.
Most of the world wide human population is growing exponentially because
a)
human populations have not yet reached their exponential curve
b)
most countries have not yet completed the demographic transition
c)
food supply is limitless
8.
The photic zone
a)
extends to the bottom of the open ocean
b)
extends to a depth of about 200 m
c)
is deep, cold and permanently dark
9.
A tropical rainforest may be unable to return to be returned to it's original climax community after which of the following disturbances?
a)
burning of a forest fire
b)
clearing and farming
c)
volcanic eruption
10.
Would a scientist who studies evolution also have to learn about other branches of biology? Why or why not?
a)
Yes, the different branches of biology are interrelated
b)
No, each branch of biology is separate from the others
c)
No the other branches of biology do not affect evolution
11.
A covalent bond is formed as the result of
a)
transferring electrons
b)
sharing electrons
c)
sharing protons
12.
A solution is a
a)
combination of isotopes
b)
chemical reaction
c)
mixture in which the substances are spread out
13.
Which is not a function of proteins?
a)
Store and transmit genetic information
b)
help to fight disease
c)
control the rate of reactions
14.
If you stir salt into boiling water, you produce a
a)
mixture called a suspension
b)
mixture called a solution
c)
mixture
15.
When salt is dissolved in water, water is the
a)
solution
b)
solvent
c)
solute
16.
The branch of biology dealing with interactions among organisms and between organisms and their environment
a)
economy
b)
modeling
c)
ecology
17.
In chemical reactions, atoms are
a)
Created
b)
destroyed
c)
rearranged
18.
When hydrogen and oxygen combine to form water, water is
a)
a product
b)
a reactant
c)
an enzyme
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