Energy Pyramids
Producers are found in this level of the energy pyramid.
What is the 1st trophic level?
Find the mistake:
A food chain shows all of the possible relationships between organisms and their energy sources within an ecosystem.
What is a food web, not a food chain?
Bees get nectar and a flower gets pollinated.
What is mutualism?
This is the maximum population that an area will support without deterioration.
What is carrying capacity?
These represent the direction of energy flow through a food web or food chain.
What are arrows?
Small fish that eat both plants and animals and are part of this trophic level.
What is a secondary consumer or the third trophic level?
Sea otters are both predator and prey. They are a predator of sea urchins and the prey of orcas. What will happen to an otter population if the number of sea urchins decreases?
What is the otter population will decrease?
In this ecological relationship an eagle and a bear are both fishing for salmon in the same part of a river.
What is competition?
This is an environmental factor that restricts the size of a population.
What is a limiting factor?
This is a type of heterotroph that eats only plants.
What is an herbivore?
According to the following food chain, this animal is the apex predator:
algae --> snail --> small fish --> larger fish --> hawk
What is the hawk?
If there is a drought and the number of producers in an ecosystem decreases significantly, it will have this affect on the rest of the food web.
What is all populations will decrease?
In this type of symbiosis a flea gets food and a dog gets itchy and possibly a disease.
What is parasitism?
This is when two different species have a relationship where at least once species benefits.
What is symbiosis?
This is a type of organism that eats both plants and animals.
What is an omnivore?
All of the energy available to organisms on earth originates from this.
What is the sun?
This ecosystem has a higher biodiversity:
Coral Reef or Desert
What is the coral reef?
In this type of symbiosis a remora gets transportation and protection and a shark gets nothing.
What is commensalism?
This term is used to describe when a wolf hunts and kills an elk for food.
What is predation?
These are the three types of symbiosis.
What are mutualism, commensalism, and parasitism?
The first trophic level has 100% of the available energy.
This amount will be available to the secondary consumers.
What is 1% of the energy?
The effect on an apex predator population if there is an increase in primary consumers will be this.
What is the predator population will increase?
A grazing herbivore stirs up insects that small birds waiting nearby eat. The birds do not help or harm the herbivore.
What is commensalism?
This is a non-native species that can outcompete other species because it lacks predators, parasites, or pathogens to limit it's population.
What is an invasive species?
Wolves were reintroduced into Yellowstone national park to get the elk population under control. Every trophic level benefited from this. This is an example of:
What is a keystone species?