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WorksheetsEcology: Resources & Invasive Species
Total questions: 19
Worksheet time: 6mins
A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.
mutualism
parasitism
commensalism
competition
Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?
Commensalism
Mutualism
Parasitism
_______ occurs when two organisms are trying to acquire or get the same resources.
Symbiosis
Competition
Predation
Collaboration
_______ occurs when 1 organisms kills and eats another for food.
Symbiosis
Competition
Predation
Collaboration
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
This may cause a population to increase
increase of food supply
removal of predators
removal of disease
all of these
What are factors that affect carrying capacity?
Biotic only
Biotic and abiotic
Depends on the ecosystem
Abiotic only
What is the carrying capacity of the graph?
around 500
more than 800
less than 300
around 700
A scientist was studying a population of fish in a pond over a period of 10 years. He observed that the population increased each year for 3 years, and then remained nearly constant for the rest of the study. The best explanation for this observation is that the population had
stopped reproducing
reached carrying capacity
mutated into a different species
run out of food and all died
What is the carrying capacity of the graph?
1000
8000
800
600
If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?
Will Increase
Will Decrease
Will stay the same
The primary cause of invasive species introduction is
too much food
human actions
weather events
asteroids
