Roles in Ecosystems
What role does kelp play in an ecosystem?
Kelp is a producer because it makes its own food
All producers get their energy from the ___________
Sun
What would happen if a population of coyotes, who like to prey on rabbits, were hit with a deadly disease.
With fewer predators around, the rabbit population starts to increase.
Lisa made the following chart below to describe the roles of animals in the wetland ecosystem. What feedback should her classmate give?
The description for consumer and decomposers should be swapped. A consumer eats another living thing and a decomposer breaks down dead material.
This term means no longer living; when the last member of a species has died
extinct
A snake is what type of Consumer?
Secondary Consumer
According to the food web below, where does the frog get its energy from?
According to the food web below, where does the frog get its energy from?
If the frogs are struck by a disease, what would happen to the eagle, raccoon, and snake population?
They will have to move to find more food and food will become scarce.
How would the ecosystem would be affected if the community of deer were over-abundant?
The consumers that eat the same producers as the deer, like the rhino, grasshopper, and mice will not have any food and will become extinct.
An _______ is all the living and nonliving things that exists and interact in one place
Ecosystem
A student claims that only consumers need to be labeled in an ecosystem since consumers require food to survive.
Why is the student’s claim incorrect?
an ecosystem needs producers in order to make food for the consumers to eat.
an ecosystem needs producers in order to make food for the consumers to eat.
The fox and the hawk represent the END of the flow of energy because the food web does not show them giving energy to another organism.
f a disease began killing the seals in the model below how will this affect the Arctic ecosystem?
f seals are taken out of the ecosystem, the predator, the polar bear, population would decrease
How many organisms in this food web obtain energy directly from producers?
3
An animal that eats both plants and animals
Omnivore
What can't animals and people make?
Their own FOOD!
What is the correct order of how the energy flows between each organism below
Sun, grass, grasshopper, frog, snake, eagle
What would happen to the community if all the trees were cut down to build new houses?
The fly population would decrease because they would have no food to eat, therefore, also decreasing the bird population since they would have less flies to eat.
The graph shows the sizes of two populations. The moose is the prey and the wolf is the predator. Using the graph, describe the changes in the ecosystem between 1965-1970.
During 1965 - 1970 the wolves become scarce and decrease, which causes the Moose to increase.
What is the difference between a predator and the prey?
A predator hunts other animals for food and the prey is the animal that is being hunted.
A fourth grade student made a model of the African Savanna ecosystem below to show the roles within the community. The student claims that consumers are shown in the community. What evidence would support this claim?
Consumers are shown in the community because there is a living organism in the model that is a predator and it eats other organisms in the community that are its’ prey.
What determines if an organism is at the top of the food chain?
If they are not threatened by predators.
What would most likely occur to the sea urchin and kelp population if humans begin killing sea otters for their fur?
The sea urchin population increases, and the kelp population decreases
Using the two sets of data below, what explanation BEST describes the changes in flow of energy in the ecosystem using the words scarce, extinct, or over abundant in your explanation?
The deer population is currently scarce, which means lions will have less food and will also become scarce.
This term means non-living things
Abiotic