Endangered Species

When a species is at risk of disappearing, what is it called?

• Vulnerable

• Extinct

• Least Concern

• Endangered

A living thing that no longer exists any where on Earth is called what?

• Extinct

• Endangered

• Vulnerable

• Lost in the wild

If the last three animals of a species are all males, what will happen to the species?

• The species will slowly grow in numbers.

• The species will become extinct because it takes a male and a female to reproduce.

• Since males have babies, no females are needed to reproduce.

Every ecosystem is important and provides some type of benefit. What type of ecosystem service would a coral reef provide?

• lumber and medicine

• farmland

• fisheries and shoreline protection

What can grasslands (a type of ecosystem) provide for people?

• 
  farmland

• lumber and medicine

• fisheries and shoreline protection

What can a tropical rain forest (a type of ecosystem) provide for people?

• Provides oxygen, food, medicine, and climate regulation
• Provides shelter for polar bears
• Provides a source of ice
• Provides a habitat for desert animals

What could cause a population to become extinct?

• 
  Adding a new predator to an area.

• 
  Introducing laws to control fishing limits and hunting

• 
  Limited genetic diversity in a population

• Forest cleared for farmland (deforestation)

If all of the predators in an ecosystem are killed off, what happens to the prey populations that once served as its food source?

• 
  Prey population will decrease

• The number of prey will stay the same

• Prey population will increase

• 
  Prey will become the predators