WorksheetsUnit 3 Test Science
Total questions: 10
Worksheet time: 5mins
What happens to an ecosystem when a population becomes overpopulated?
Organisms that rely on the same resources as the overpopulated organism will DECREASE.
Organisms that rely on the same resources as the overpopulated organism will INCREASE
Organisms that rely on the same resources as the overpopulated organism will MULTIPLY
If producers were to increase in an ecosystem, how will that affect the other trophic levels?
Organisms in the other trophic levels will DECREASE
Organisms in the other trophic levels will INCREASE
What best describes the niche of this organism?
Consumer
Predator
Scavenger
Producer
Which of the following would be a limiting factor for the producers in the ecosystem pictured below?
Sunlight
Soil
Water
Minerals
Which of the following is an example of mutualism?
Which definition best describes the relationship between a parasite and its host?
A symbiotic relationship where one species is eaten by the other.
A symbiotic relationship where one species benefits and the other is harmed.
A symbiotic relationship where both species benefit.
A symbiotic relationship where one species benefits and the other does not benefit nor is it harmed.
Which type of relationship do the two species below share in their ecosystem?
Predator & Prey
Mutulasim
Parasitism
Bee keepers
How would an organism that has very few predators affect an ecosystem if it were to die out?
The producers would die out.
The producers would die out.
The herbivores would overpopulate.
The ecosystem would reach equilibrium.
In Yellowstone National Park, the wolves were removed to protect livestock. Their removal changed the ecosystem drastically. They might be called
a limiting factor
a keystone species
a limiting factor
a symbiotic parasite
TRUE OR FALSE: When a new species is introduced into an ecosystem, the population of their prey species will decrease.
False
True
