Ecosystem Services and Functions

The video lesson introduces seventh graders to the concept of ecosystem services, dividing them into four categories: cultural, provisional, regulatory, and supporting. The teacher reviews the term 'ecology' and explains how ecosystems provide various services that benefit humans, such as resources, relaxation, and natural regulation. The lesson includes examples like oysters filtering water and the importance of cycles in supporting services. A quiz at the end reinforces the learning objectives.

What is an organism called that enters a new area without any natural predators?

• Extinct species

• Endangered species

• Keystone species

• Invasive species

What does the term 'ecology' refer to?

• The study of animal behavior

• The study of human history

• The study of ecosystems

• The study of weather patterns

Which of the following is an example of cultural services provided by ecosystems?

• Water filtration by oysters

• Using coal as fuel

• Bird watching

• Decomposition by mushrooms

Why did ancient civilizations often settle near rivers?

• To facilitate trade and transport

• To access drinking water

• To avoid predators

• For recreational activities

What are provisional services in an ecosystem?

• Benefits from natural processes

• Cultural and historical benefits

• Resources like food and water

• Recycling of nutrients

Which of the following is NOT a provisional service?

• Drinking water

• Coal and fossil fuels

• Bird watching

• Wood for building

How do oysters contribute to regulatory services in ecosystems?

• By supporting cultural activities

• By recycling nutrients

• By cleaning water

• By providing food

What does the term 'regulate' mean in the context of regulatory services?

• To provide resources

• To control or manage

• To offer cultural benefits

• To recycle materials

What role do decomposers play in supporting services?

• They offer recreational activities

• They break down dead material

• They clean water bodies

• They provide food resources

How do plants and animals maintain a balance in the ecosystem?

• By competing for resources

• By regulating water flow

• By converting carbon dioxide to oxygen

• By providing cultural services