Vocabulary Test: Ecosystem & Sustainability Terms

Which of the following best defines a feeding level?

• The total number of organisms in a population

• A specific position an organism occupies in a food chain

• The number of predators in an ecosystem

• A type of aquatic habitat

What is the main goal of sustainability when managing natural resources?

• Use resources as quickly as possible

• Keep resources untouched forever

• Ensure resources are available for current and future generations

• Sell all available resources for economic profit

Which scenario describes a sustainable fishery?

• A. A fish species is hunted until only a few individuals remain.

• B. A fish population is allowed to reproduce enough before being harvested.

• C. Fish are caught in large amounts every day without limit.

• D. Only large predators in the ocean are targeted.

Which term refers to the total amount of living matter in a given area?

• Biodiversity

• Food web

• Biomass

• Nutrient flow

What is an ecosystem made of?

• Only animals in one area

• Non-living materials only

• Living organisms and their physical environment

• One species interacting with its food source

Which of the following best illustrates a food web?

• A straight line from one predator to its prey

• A chart that shows where animals live

• A map of water movement in the ocean

• A complex diagram of multiple feeding relationships in an ecosystem

Interdependence is important in ecosystems because:

• It helps maintain balance and stability.

• It causes competition among species.

• It reduces biodiversity.

• It leads to extinction of species.