Vocabulary
An organism that eats only meat.
What is a carnivore?
An animal that eats plants or other animals.
What is a consumer?
In a Mississippi swamp, alligators and great blue herons eat fish. Which type of organisms are the alligators and great blue heron?
A) Heterotrophic
B) Autotrophic
What is a Heterotrophic?
Why are decomposers important organisms in a food web? A) They produce oxygen. B) They prey on carnivores. C) They are food for producers D) They return nutrients to the soil
What is they return nutrients to the soil?
What is the ultimate source of energy in an ecosystem?
Radiant energy/Sun
An organism that makes its own food.
What is a producer?
An organism that breaks down dead or decaying plant or animal material.
What is a decomposer?
Consider this food chain: grass=> grasshopper=> mouse => snake Which organism is an herbivore?
What is the grasshopper?
Consider the food chain: grass=> grasshopper=> frog=> snake What would happen in the ecosystem if the grasshopper population died? A) snakes would eat the grasshopper B) it would be fine, frogs prefer other insects anyway C) it would be fine, the grass population would increase D) the frog population would die from the decrease in their food supply
What is D, the frog population would die from the decrease in their food supply?
What do arrows on a food chain and food web represent?
What is the flow of energy?
An organism that eats only plants.
What is an herbivore?
These eat "dead" animals. They do not kill the animals.
What are scavengers?
Consider this food chain: blackberries=> bird=> cat Which organism is the carnivore?
What is the cat?
Which is true regarding an energy pyramid? A) carnivores occupy a larger level than herbivores B) herbivores occupy a smaller level than producers C) consumers occupy the level below producers D) producers and carnivores occupy the same level
What is B, herbivores occupy a smaller level than producers?
When a frog eats a grasshopper, how much of the grasshopper's energy is transferred to the frog? A) 10% B) 25% C) 50% D) 90%
What is A, 10%?
A relationship where one organism benefits from the relationship and the other organism is NOT helped and NOT harmed.
What is commensalism?
The struggle between organisms for the same resource.
What is competition?
Consider this food chain: acorns=> squirrels=> hawks Which of these is the producer?
What are the acorns?
Which of the following organism is a secondary consumer in the food chain? A) hawk B) gorilla C) squirrel D) earthworm
What is a hawk?
Explain the difference between the scavenger and decomposer.
Scavengers are predators that consume dead and living materials - they do not return nutrients to the soil like decomposers
Any living organism in an ecosystem. This includes organisms that used to be alive but are no longer living now.
What is biotic?
A relationship where BOTH organisms benefit!
What is mutalism?
What is an "natural event" or example that would disrupt a food chain?
What is a hurricane, a tornado, a forrest fire, flood etc.
A certain type of bear mainly eats trout. If the trout population declines, what will most likely happen to the bear population? A) it will decrease B) it will increase C) it will remain the same D) it will increase and then decrease
What is it will decrease?
In the energy pyramid what trophic level have the MOST available energy and why?
Producers have the most available energy because they make their own food, they are autotrophic.