Trophic Terms
What is an autotroph?
An organism that produces its own food.
What is a population?
All organisms of the same species living in close proximity.
What is the type of symbiosis between a deer and grass?
Predation
Which of the trophic levels have the most stored energy available?
Producer
What does abiotic mean?
Non-living things in an ecosystem
What is a heterotroph?
An organism that cannot make its own food.
All the different species of an ecosystem are referred to as the...
community
What is the type of symbiosis between bees and flowers?
Mutualism
What is the difference between ecology and the ecosystem?
Ecology is the study between living organisms and their environment, ecosystem is the place where interactions between non-living and living things occur.
What is the ten percent rule for energy transfer in ecology?
The ten percent rule of energy transfer states that each level in an ecosystem only gives 10% of its energy to the levels above it.
What is a primary consumer? What does it eat?
A producer.
What are examples of producers?
Plants, phytoplankton
What is the type of symbiosis between bird nests and trees?
Commensalism
What would happen to producers with an increase of secondary consumers?
Producers would increase as herbivores decrease.
What happens to biomass as trophic levels increase?
Biomass decreases due to less energy available.
What is a secondary consumer? What does it eat?
It eats herbivores.
How much energy is lost between each level in the energy pyramid?
90%
What type of symbiosis would barnacles living on whales be?
Commensalism
What is an example of an increase of intraspecific competition?
What do the arrows on a food web show?
The movement of energy
What is a tertiary consumer? What does it eat?
It eats secondary/primary consumers or carnivores
Where do decomposers go on the energy pyramid?
To the side, they are not part of the pyramid
An organism that only feeds on other animals is known as?
Carnivore
What is biomagnification?
The gradual accumulation of a substance, such as pesticides or other chemicals, in an organism
If a cougar eats a hare that has a total of 350 kilocalories of food energy, how many kilocalories are converted to biomass if the cougar loses 90 percent of the food energy to waste and cellular respiration?
35 Kilocalories