Ecosystem

Why would a gardener add earthworms to agarden plot. 

•  The worms eat the roots of the weeds, so thegarden has less weeds competing with his peaplants.
•  The worms secrete chemicals into the soil thatmake it difficult for weeds to grow.
• The worms eat pests that damage his crops, sohis crop suffers less damage.
• The worms eat the unwanted vegetation andexcrete wastes, returning nutrients to the soil.

What does the word "producer" mean in science?

•  an animal that hunts other animals for food
• a living thing that eats food
• an animal that is hunted by other animals for food
• a living thing that makes its own food

Which is NOT a type of consumer?

• producer
• carnivore
• decomposer
• omnivore

The best example of a producer-consumerrelationship is

• an earthworm being eaten by a robin.
• a rabbit being eaten by a wolf.
• an oak leaf being eaten by a caterpillar.
• shrimp-like organisms being eaten by a whale.

___________ all of the living and nonliving things surrounding an organism. 

• producer
• consumer
• environment
• ecosystem

A living thing that feeds on the wastes of plants and animals.

• producer
• decomposer
• carnivore
• herbivore

An animal that eats both plants and other animals.

• herbivore
• decomposer
• carnivore
• omnivore

An animal that eats only other animals.

• carnivore
• herbivore
• omnivore
• decomposer

A living thing that can not make its own food and must eat other living things. 

• population
• community
• consumer
• producer

All the individuals of the same kind living in the same place. 

• environment
• ecosystem
• population
• community