Level 1
Level 2
Level 3
Level 4
Level 5
100
The study of how humans affect other organisms and their environment is:
a. Environmentalism
b. Environmental science
c. Ecology
b. Environmental science
100
Racoons will eat almost anything. They are most accurately called:
a. Herbivores
b. Producers
c. Omnivores
c. Omnivores
100
A food web is:
a. A set of interconnected food chains, illustrating the trophic relationships among species
b. The same as a food chain
c. A set of interconnected ecosystems
a. A set of interconnected food chains, illustrating the trophic relationships among species
100
Which of the following is the best example of an organism with low biotic potential?
a. Mosquitos
b. Elephant
c. Spiders
b. Elephant
100
The first organisms to colonize a newly formed lifeless habitat are:
a. pioneer
b. climax
c. early-successional
a. pioneer
200
Ecology and environmentalism differ in that
a. ecology is a science, environmentalism is a concern
b. environmentalists formulate and test hypotheses
c. there is no difference between ecology and environmentalism
a. ecology is a science, environmentalism is a concern
200
18. An Indian pipe is a small flowering plant that is completely white (it lacks chlorophyll) and grows on rotting plant material on the forest floor. It is a:
a. Decomposer
b. Predator
c. Herbivore
a. Decomposer
200
Food-web stability is most dependent on:
a. The abundance of primary consumers
b. The presence of decomposers
c. The number of connections among species
c. The number of connections among species
200
38. The population change in a particular year can be calculated by:
a. (deaths + emigration) - (births + immigration)
b. (births + immigration) - (deaths + emigration)
c. (deaths + immigration) - (births + emigration)
b. (births + immigration) - (deaths + emigration)
200
In the western United States, at the southern edge of their range, moose are sometimes so severely infested with ticks that they die. This tick/moose relationship would best be described as:
a. Parasitic
b. Commensal
c. Mutualistic
a. Parasitic
300
When describing a system brewing coffee would be the:
a. input
b. output
c. process
c. process
300
The cheetahs in Kenya and the cheetahs in Tanzania makeup separate:
a. Species
b. Communities
c. Populations
c. Populations
300
In a forest food chain, the least amount of energy would flow to which of the following organisms?
a. Rabbits
b. Oak Trees
c. Wolves
c. Wolves
300
Which of these is an example of precipitation?
a. snow
b. clouds
c. air
a. snow
300
A landslide causes part of a mountainside to fall away, leaving bare rock. In the years immediately following the landslide, the area will experience
a. Primary succession
b. Aquatic succession
c. Secondary succession
a. Primary succession
400
As cattle begin to run, panic increases. More panicked cattle will cause other cattle to run, creating a stampede. This demonstrates a:
a. Negative Feedback Loop
b. Positive Feedback Loop
b. Positive Feedback Loop
400
An aquarium ecosystem is shown in the accompanying diagram. A community in this aquarium consists of the
a. Fish and water
b. Plants and gravel
c. Fish and plants
c. Fish and plants
400
Phosphorus is released from rock to the phosphorus cycle by the process of:
a. Weathering
b. Evaporation
c. Climate Change
a. Weathering
400
76. Intraspecific competition is:
a. The competition between members of different species
b. Competition between all communities within an ecosystem
c. Competition between members within the same species
c. Competition between members within the same species
400
A beehive depends on pollen from flowers to survive. Flowers depend on bees to pollinate them. Humans tend bee hives, offering the bees a place to live in exchange for some of their honey. The relationship among these three sets of organisms is:
a. Parasitic
b. Commensal
c. Mutualistic
c. Mutualistic
500
Cynthia works in a hair salon for 25 years. At the end of her career, she is diagnosed with lung cancer. This is an example of:
a. negative feedback
b. positive feedback
c. time delay
c. time delay
500
You will be conducting a study of the interactions of vegetation, animals, soil nutrients, and water levels in a saltmarsh. You are studying the saltmarsh ______________:
a. Population
b. Community
c. Ecosystem
c. Ecosystem
500
35. When humans EXHALE, we release __________.
a. Oxygen
b. Carbon Dioxide
c. Nitrogen
b. Carbon Dioxide
500
Interspecific competition is:
a. The competition between members of different species
b. Competition between all communities within an ecosystem
c. Competition between members within the same species
a. The competition between members of different species
500
The ____ states that no two species can occupy the same niche.
a. Theory of range of tolerance
b. Competitive exclusion principle
c. Fundamental niche theory
b. Competitive exclusion principle