Chapter 2.8

Question 1

True or False - Natural events can disrupt ecosystems?

Answer 1

True - All events may be able to disrupt ecosystems.

Question 2

Define: Carrying Capacity

Answer 2

The ability of the environment to support a size of a population at its maximum.

Question 3

Define: Epicormic Buds

Answer 3

Buds beneath the bark of trees that can regenerate the branches when the fire has passed.

Question 4

Define: Lignotubers

Answer 4

Tubes within the roots that can grow into new shoots after fire.

Question 5

What are three impacts of Seasonal Changes on Ecosystems?

Answer 5

• When the weather becomes colder, many animals migrate to warmer areas.
• During the breeding season, usually spring, animal numbers increase
• Flowering plants will be pollinated and from seeds that spread throughout the environment and later germinate

Question 6

What are two impacts of bushfires on ecosystems?

Answer 6

• They destroy both plant and animal life

- They have caused adaptions among plants so that they can survive bushfires

Question 7

What are three impacts of floods on ecosystems?

Answer 7

• They can flush and remove small plants
• They can stop the germination of seeds
• They can be a hazard for some animal life

Question 8

What is an impact of droughts on ecosystems?

Answer 8

• Droughts often cause animals to migrate to a new environment until conditions in their original environment improve