Relationships
What two things do consumers give producers?
Carbon dioxide and micronutrients/waste
What is algae?
Organisms that live in water and that produce their own food, like plants do
A group of connected food chains is called...
A food web.
Another name for a living thing.
An organism
What two things do producers give decomposers?
Oxygen and dead plants
This kind of consumer eats only plants.
Herbivore.
Animals that hunt other animals are called...
Predators
What would happen if the number of organisms in one group increased significantly?
Another organism would decrease significantly.
What two things do consumers give decomposers?
Waste and dead animals
This type of producer eats both plants and animals.
Omnivore.
What is an ecosystem?
All the living things that interact with each other and their environment in one place.
What would happen if the number of organisms in one group decreased significantly?
Another group of organisms would increase significantly.
What two things do producers give consumers?
Oxygen and food
Why does fruit on a table rot, but fruit in a tree not rot so quickly?
The apple on the tree is still alive. The apple on the table is not alive.
Organisms that make their own food using sunlight are called...
Producers
How are earthworms and fungi essential parts of the foodchain?
They break down dead materials (decomposers) and provide micronutrients to producers.
What two things do decomposers give producers?
Carbon dioxide and micronutrients
What is runoff?
Water that moves across a surface, often carrying materials with it, and flows into drains and rivers
What is an algae bloom?
A quick increase in the amount of algae growing in an area
A student says, “Removing one small insect species won’t matter much." Are they right or wrong? Why?
All parts of the food web are connected. Small changes have big effects.
Explain the food web in a lake.
Producers like algae and other plants make their own food. This provides oxygen for the lake. The consumers, such as fish and crabs, eat other living things, including producers. They breath the oxygen the producers make. Decomposers decompose dead animals and dead plants. They also breath the oxygen the producers make.