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Worksheetsinteraction between organisums 2
Total questions: 24
Worksheet time: 13mins
Which of the following is NOT a symbiotic relationship?
Competition
Commensalism
Mutualism
Parasitism
What term describes organisms striving for the same limited resources?
Competition
Predation
Mutualism
Commensalism
Commensalism is a symbiotic relationship in which what occurs between the organisms?
both organisms are harmed
one benefits, the other is unaffected
one benefits, the other is harmed
one benefits by eating the other
A crab is protected from fish when an anemone rides on its shell. The anemone gets more food.
Commensalism
Competition
Predation
Mutualism
Orchid vines are skinny and grow on the trunk of trees to get more light and space with no negative effect.
Mutualism
Commensalism
Parasitism
Competition
When the population of predators gets too high...
Prey pop. will increase--> predator pop. will increase
Prey pop. will decrease--> predator pop. will increase
Prey pop. will decrease--> predator pop. will decrease
It depends on the biome
An increase in the population of an organism (living thing) could happen because of ??
A series of severe weather events in the habitat
A decrease in necessary resources available
An expansion (increase) of living space
An increase in animals that prey on the organism
An increase in the population of an organism (living thing) could happen because of ??
A series of severe weather events in the habitat
A decrease in necessary resources available
An expansion (increase) of living space
An increase in animals that prey on the organism
The position an organism occupies on the food web.
Trophic Level
Tertiary Consumer
Predation
Mutualism
An organism that gets its energy by eating secondary consumers
Heterotroph
Mutualism
Tertiary Consumer
Predation
An organism that gets its energy by eating secondary consumers
Heterotroph
Mutualism
Tertiary Consumer
Predation
An interaction between organisms or species that is helpful to one but neither helpful nor harmful to the other
Commensalism
Competition
Energy pyramid
Heterotroph
When more than one individual or population in an ecosystem relies on the same limited resources
Competition
Mutualism
Predation
Tertiary Consumer
A relationship between organisms of different species where one organism benefits at the expense of the other
Parasitsim
Predation
Tertiary Consumer
Trophic level
If food chains start with plants, where do plants get their energy from?
What is competition between two organisms?
Reproduce at the same rate
Are both active during the day
Are both active during the night
Require the same resources.
When does energy present within any food web first enter an ecosystem?
Decomposers bread down dead organisms.
Producers absorb light
Consumers feed on producers.
Consumers feed on other consumers.
How do consumers get their energy by-
Engaging in photosynthesis
Causing decay of organic matter
absorbing nutrients from the soil
eating other organisms
Which explanation describes the importance of decomposers in a food web?
They use photosynthesis to make their own food.
They return nutrients to the soil for use by plants.
They provide oxygen for animals to breathe.
They store energy for later use by plants and animals.
An organism that makes its own food
Heterotroph
Autotroph
Parasitism
Trophic Level
An organism that must consume other organisms
for energy
Tertiary consumer
Heterotroph
Parasitism
Autotroph
An organism
that gets its
energy by eating
secondary
consumers
Predator
Tertiary Consumer
Prey
Commensalism
The position an
organism
occupies on
the food web
Trophic Level
Energy Pyramid
Consumer
Autotroph
What do the arrows in a food web represent?
The energy lost
The transfer of energy
The prey that is being eaten
None of these
