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WorksheetsBio/Int3 #3 midterm review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
The total amount of living tissue within a given trophic level is called the
a)
trophic mass
b)
energy mass
c)
biomass
2.
Carbon cycles through the biosphere in all of the following processes except
a)
transpiration
b)
burning of fossil fuels
c)
decomposition of plants and animals
3.
Which part of the water cycle is a biological process?
a)
transpiration
b)
runoff
c)
precipitation
4.
Animals get most of the nitrogen they need from
a)
By consuming plants or other animals
b)
by breathing in atmospheric nitrogen
c)
directly from the bacteria in the soil
5.
Which is the biotic factor that affects the size of a population in a specific ecosystem?
a)
Type of soil in the ecosystem
b)
number and types of predators in the ecosystem
c)
concentration of oxygen in the ecosystem
6.
Primary succession would most likely occur after
a)
forest fire
b)
lava flow
c)
farm land is ab
7.
What is one difference between primary and secondary succession?
a)
Secondary succession begins on soil and primary succession begins on newly exposed surfaces
b)
primary succession modifies the environment and secondary succession does not
c)
Secondary succession begins with lichens and primary succession begins with trees
8.
Which of the following occurs during the ecological succession of an ecosystem?
a)
Animals move out of their ecosystem until succession is complete
b)
Living organisms modify their environment a little at a time
c)
parts of communities split off to form new communities
9.
Which aquatic ecosystem is likely to be the warmest?
a)
An open ocean system near Antarctica
b)
A coastal ocean near a temperate latitude
c)
A benthic system in the middle of the ocean
10.
Freshwater ecosystems that often originate from underground sources in mountains or hills are
a)
estuaries
b)
rivers or streams
c)
lakes and ponds
11.
Which is one way a freshwater wetland differs from a lake or a pond?
a)
Wetlands are nesting areas for birds but lakes and ponds are not
b)
Water does not always cover a wetland as it does a lake or a pond
c)
Wetlands are salty but lakes and ponds are fresh
12.
Estuaries are commercially important because
a)
Fish species that people buy and sell live in estuaries
b)
tall buildings can be built in estuaries
c)
lumber trees grow in estuaries
13.
Which organism lives where it is sometimes submerged and routinely exposed air, heat, battering waves, and strong currents?
a)
Barnacle
b)
squid
c)
dolphin
14.
If you know the range of a population, then you know
a)
The number of individuals that live in an area
b)
The areas that are inhabited by the population
c)
the birth rate and death rate
15.
The movement of organisms into a range is called
a)
immigration
b)
emigration
c)
population shift
16.
Which of the following could describe a population that is decreasing in size?
a)
The death rate is becoming lower then the birth rate
b)
The death rate is constant and the birth rate is increasing
c)
The death rate is becoming higher then the birth rate
17.
If immigration and emigration numbers remain equal, which of these could cause a slowed growth rate?
a)
increased birth rate
b)
constant death rate
c)
decreased death rate
18.
Which are 2 ways a population can decrease in size?
a)
increased death rate and immigration
b)
decreased birthrate and emigration
c)
emigration and increased birthrate
19.
As resources in a population become less available, the population
a)
declines rapidly
b)
increases slowly
c)
reaches carrying capacity
20.
Sea otters live in the ocean. Which of the following is NOT likely to be a limiting factor on the sea otter population?
a)
disease
b)
competition
c)
drought
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