Living/Nonliving
What do you eat?
Food Chains
Food Pyramids
Role in the Ecosystem
100
A non-living organism in an ecosystem
What is an Abiotic Factor
100
Only eats meat
What is a carnivore
100
This is the source of all energy on earth.
What is the sun
100
How would a change in water temperature impact the fish that live in a pond?
They might die or might not be able to lay eggs.
100
Animal that hunts for its food.
What is an animal that gets eaten?
What is a predator
What is prey?
200
A living organism in an ecosystem
What is a Biotic factor
200
Only eats plants
What is a herbivore
200
What does the arrow mean in a food chain/web
What is the flow of energy from prey to predator
200
If one species of an organism in an ecosystem suddenly disappeared, which would be the MOST LIKELY result?
A. The ecosystem would not be changed at all.
B. Many parts of the ecosystem would be affected. C. The ecosystem would be destroyed immediately.
D. All of the plants would stop making food.
B
200
A system composed of biotic and abiotic factors is called a...
What is ecosystem
300
The fire is an example of this
What is an Abiotic factor
300
Eats both plants and animals
What is an omnivore
300
Grass->rabbit -> fox -> mountain lion
What will happen if a lot of rabbits die of a disease?
Grass will increase. Foxes will decrease.
300
What would happen if there were no decomposers?
Dead material and waste would not break down and we would be surrounded by it.
300
A marine food web is provided below. Describe the relationship between the squid and the tuna.
The squid are eaten by the tuna. The squid are prey and the tuna is the predator.
There are more squid than tuna
400
A tree is an example of this
What is a biotic factor
400
Breaks down dead material and waste for energy
What is a decomposer
400
What percent of energy can travel from one level of a food pyramid to the next?
10%
400
Why is an energy pyramid shaped like a pyramid?
You need many producers and primary consumers to support a few top predators.
400
The table provides information on population density of mayflies, a kind of insect, in a certain area over a few years. Based on the population density data provided, which data provides evidence that there was a significant increase in the population of birds that prey on mayflies?
In 2008 there was a big decrease in the number of mayflies so the number of birds must have gone up to eat all of them.
500
The difference between a population and a community.
What is a population is one species and a community is multiple of them.
500
Why do we need predators in our ecosystem?
Because without predators we have would have too much prey.
500
Draw a food pyramid with 4 levels. The base level has 6700 units of energy.
See board
500
We have seen a decrease of 75% in songbirds over the last 30 years. How does lack of tertiary predators in Iowa contribute to this?
Without tertiary predators (mountain lions, wolves, bears), secondary preadators (raccoons, feral cats, possums) have increased in population and eaten most of the bird population
500
What is one conclusion about the population of mice you could make from these graphs?
As the amount of food goes up so too would the population of mice but the population of predators also goes up. Also 1996 was a bad year to be a mouse.