WorksheetsEcology Unit 1
Total questions: 37
Worksheet time: 23mins
If the deer population decreased in Yellowstone National Park, what would happen to the wolf population?
it would stay the same
it would decrease
it would increase
If the deer population in Yellowstone National Park increases, what happens to the amount of resources in the area?
stays the same
decreases
increases
The lion in this food chain is a ____________.
producer
primary consumer
secondary consumer
tertiary consumer
________ is the variety of all types of organisms living in a given
area.
ecology
biodiversity
ecosystem
population
Who are the primary consumers in this food web?
grasses
rabbit, mouse, grasshopper
owl, frog, bird
owl, rabbit, grasshopper
The living factors in the environment are called _________.
abiotic
biotic
The non-living factors in the environment are called _________.
abiotic
biotic
Dead grasshoppers are __________ factors of the environment.
biotic
abiotic
A symbiotic relationship where one organism benefits and the other is harmed is ____________.
commensalism
mutualism
parasitism
predation
A symbiotic relationship where both organisms benefits is ____________.
commensalism
mutualism
parasitism
predation
A symbiotic relationship where one organism benefits and the other is unaffected is ____________.
commensalism
mutualism
parasitism
predation
A symbiotic relationship where one organism hunts the other organism for food is ____________.
commensalism
mutualism
parasitism
predation
What would happen to the rabbit population if the fox population moved out of the area represented by the food web?
The rabbit population would increase
The rabbit population would decrease
The rabbit population would neither increase nor decrease
How does the mouse get energy in this food web?
From a producer
From a consumer
By turning light into food
By releasing Carbon Dioxide
What is true about this food web
The shrubs receive matter from the rabbit
The Coyote receives matter directly from the shrubs
The Mountain Lion receives matter directly from the fox
Coyotes receives matter from kangaroo rats
Clownfish live inside sea anemones. They eat creatures that harm anemones, while anemones protect clownfish from predators. This is an example of:
Mutualism
Commensalism
Parasitism
Amensalism
What percentage of energy is passed on to the next trophic level?
5%
10%
50%
90%
Which one eats ONLY producers?
Primary consumers
Secondary consumers
Tertiary consumers
Which of the following is an example of a producer in an ecosystem?
Grass
Rabbit
Fox
Hawk
What is the primary role of decomposers in an ecosystem?
To produce energy from sunlight
To consume other organisms
To break down dead material
To compete with primary consumers
In a food chain, which organism is typically at the top?
Producer
Primary consumer
Secondary consumer
Tertiary consumer
What is a population?
groups of different species living in the same area
group of the same species living in the same area
includes all of the organisms and non-living things in an area
major regional or global community
What is the number of individuals that can be supported by the environment?
Carrying capacity
Population density
Dispersion patterns
Symbiosis
What happens if a population grows past its carrying capacity?
The population keeps growing
The population starts to die off
The entire species will go extinct
The carrying capacity just increases
Something that regulates the size of a population is called...
a limiting measure
a limiting factor
carrying capacity
biodiversity
In the graph to the right, what is the population of deer at the carrying capacity of the environment?
3
7
70
40
Which biome consists of very low precipitation and can be hot or cold?
savanna
tropical rainforest
tundra
desert
Which of the following is an example of an abiotic factor in an ecosystem?
Sunlight
Tree
Deer
Fungi
What is the role of decomposers in an ecosystem?
They produce energy from sunlight
They consume primary consumers
They break down dead organisms and recycle nutrients
They compete with producers for resources
Which of the following best describes a food chain?
A network of interconnected food webs
A linear sequence of organisms through which nutrients and energy pass
A group of organisms that share the same habitat
A collection of organisms that have similar feeding habits
