4.2 Quiz - Biodiversity

1. The number of different species in an area is known as ...

• a. Purification
• b. Recycling
• c. Biodiversity
• d. Oceanic
• e. Terrestrial

2. When there is a high amount of biodiversity plants and animals will _____.

• a. have residency in the times of disruption
• b. suffer in times of disruption.

3. TRUE or FALSE : Ecosystem biodiversity is a measure of an ecosystem's health.

• True
• False

4. Changes in biodiversity can affect _____.

• a. purification
• b. ecosystem services
• c. recycling
• d. weather

6. If there were fewer insects to pollinate plants on Earth, what would be the biggest concern for humans?

• a. Crops might not get pollinated, and there could be a food shortage.
• b. There could be fewer roses available on Valentine’s Day.
• c. Honey could become more expensive.
• d. People who work for pest control companies might lose their jobs.

7. What is NOT an example of an ecological service that animals provide, which in turn helps Earth’s biodiversity?

• a. Snakes, foxes, and other predators eating pests like mice so they do not invade people’s homes as much
• b. Animals, such as insects, birds, and bats, pollinating flowers
• c. Dogs barking at intruders
• d. Bats, birds, and other insects eating mosquitoes, which bite people and spread diseases

8. What are some examples of human activities that can have big impacts on ocean ecosystems?

• a. Introduction of invasive species
• b. Fishing, both recreational and commercial
• c. Pollution
• d. All of the above

9. One constraint of solutions to maintain the health of ecosystems is ...

• a. It is expensive.
• b. It is sometimes difficult to regulate human activities.
• c. It can be difficult to control species.
• d. All of the above

10. What ecological services do plants provide that help Earth’s biodiversity?

• a. Plants are used to make many medicines that are used to treat diseases in people and animals.
• b. Plants maintain the balance of gases in the air through photosynthesis, supplying oxygen for humans and animals.
• c. Plants help slow the effects of weathering and erosion.
• d. Plants provide all of these ecological services.

11. The chart below lists data on four different projects designed to restore a wetlands habitat destroyed by human activity and a recent hurricane. The project that will be chosen will have to be low in cost, benefit the greatest number of species, and be popular with the local citizens whose taxes will sponsor it. Based on the data and the criteria given, which project will be chosen?

• a. Project 1
• b. Project 2
• c. Project 3
• d. Project 4