Ecosystems Pre-Assessment

Many animals in an ecosystem depend on other animals for -

• Air

• Energy

• Shelter

• Water

Many birds have sharp claws, or talons, on their feet. Talons help the hawk interact with

• water they drink from streams

• diseases that make them sick

• the animals they catch and eat

• the sunlight that warms them

An ecosystem is -

• an area with both living and nonliving elements interacting

• a cool place to go

• a large area

• an area with only living elements

Plants are directly interacting with another living component of their environment when they -

• soaking up water

• absorbing sunlight

• attracting insects

• taking in carbon dioxide

Plants depend on insects for pollination in order to produce seeds. Plants depend on insects to -

• produce offspring

• grow new leaves

• strengthen roots

• make more food

Frogs interact in ponds with many things. Frogs interact with nonliving components when they

• eat swimming insects for energy

• lay their eggs in bodies of water

• become food for another animal

• hide beneath plants in the pond