Science Study Guide – Chapter 3
Introduction to Ecosystems
An ecosystem can be a home to many different populations.
The study of ecosystems is known as ecology.
Learn the chart below:
Biotic Factors
Pine trees
Squirrels
Bacteria
Abiotic Factors
Light
Water
soil
Butterflies and daisies can be members of the same community.
A biome is a type of ecosystem.
Grass, shrubs, and trees are the three main types of plants that grow in a savannah.
Most animals in the tundra are likely to have thick coats.
Study the Diagram below:
Parts of a Forest
floor
canopy
understory
Producers could not make food without sunlight.
A lion receives less of the Sun’s energy in it s food than a caterpillar does – this is a true
statement.
Nutrients are added to the soil with the help of decomposers.
Study the diagram below:
Consumers
omnivore
herbivore
carnivore