4.1. ECOSYSTEM

Try these first

1. 1.

   What is an ecosystem?

   Hint

   Think about both living and non-living components.

2. 2.

   Name one abiotic factor in an ecosystem.

   Hint

   Remember that abiotic factors are non-living.

3. 3.

   What are the two main components of an ecosystem?

   • Only biotic components
   • Only abiotic components
   • Both biotic and abiotic components

   Hint

   Think about what constitutes life and its environment.

4. 4.

   True or False: Energy flow in an ecosystem is cyclic.

   • True
   • False

   Hint

   Consider how energy is transformed and lost in ecosystems.

5. 5.

   Analyze how a reduction in rainfall could affect both biotic and abiotic components in a grassland ecosystem.

   Hint

   Consider the relationships between water and plant life.

6. 6.

   Evaluate the impact of introducing a new predator species into a balanced ecosystem.

   Hint

   Think about the existing food web and how species rely on each other.