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?
Can an organism be part of more than one food chain?
A) no, because it cannot be predator and prey at the same time
B) no, because the arrows in a food web can only flow in one direction
C) yes, because it can be prey for more than one organism
D) yes, because it may live in more than one environment
What is C, because it can be prey for more than one organism?
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?
Which type of organism is a fungus?
A) carnivore
B) omnivore
C) herbivore
D) decomposer
What is D, decomposer?
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 special type of interaction between species. Sometimes beneficial, sometimes harmful, these relationships are essential to many organisms and ecosystems, and they provide a balance that can only be achieved by working together.
What are Symbiotic Relationships
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?
How does the food chain start again after the decomposer does its' job? A) because the decomposer spreads the seeds B) because the decomposer must constantly stay busy to stay alive C) because the decomposer breaks the dead or decaying organism down and the nutrients go back into the soil, causing any seeds that have been dispersed a good environment to reproduce D) because the decomposer does not totally break the organism down and some of the organism is still alive
What is C, because the decomposer breaks the dead or decaying organism down and the nutrients go back into the soil, causing any seed that have been dispersed a good environment to reproduce?
One of the organisms actually harms the other through the relationship. The organism that is harming the other one is called a _________. Examples: Fleas or ticks that live on dogs and cats
What is Parasitism
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 A, it will decrease?