Aquatic Ecosystems Quiz

What is an aquatic ecosystem with insufficient nutrients that greatly restrict the growth of organisms called?

• Eutrophic

• Oligotrophic

• Mesotrophic

• Hypereutrophic

What process involves producing sugar and oxygen by photosynthesis and new tissues through the metabolism of consumers?

• Cellular respiration

• Decomposition

• Primary production

• Fermentation

What term describes free swimming organisms in aquatic ecosystems?

• Benthos

• Plankton

• Nekton

• Sessile

What is the term for the number of different species in an ecosystem?

• Population

• Biodiversity

• Biomass

• Community

What is formed by oxygen combining with hydrogen in cellular respiration in the electron transport system?

• Carbon dioxide

• Water

• Glucose

• ATP

What are organisms moved about by currents in aquatic ecosystems called?

• Plankton

• Nekton

• Benthos

• Sessile

What is the surface below aquatic ecosystems known as?

• Pelagic zone

• Benthic zone

• Littoral zone

• Neritic zone

What are aquatic ecosystems with excess nutrients resulting in excessive growth of organisms and the depletion of dissolved oxygen called?

• Oligotrophic

• Mesotrophic

• Eutrophic

• Hypotrophic

What is a large area of similar climate, soil, plants, and other organisms called?

• Ecosystem

• Biome

• Habitat

• Niche

What is the study of freshwater ecosystems known as?

• Marine biology

• Limnology

• Oceanography

• Hydrology