Exam 7: Aquatic Biodiversity

Coral reefs are sensitive biological indicators of environmental conditions.

You would find crabs and periwinkles in the ____________________ zone.

The euphotic zone is that region of the ocean just below the limit of light absorption.

The euphotic zone would include such animals as sharks and zooplankton.

Sea stars,anemones,hermit crabs,and periwinkles all can be found in the rocky shore zone.

Which zone is the dimly lit (twilight)zone of the sea? 

The ______________________________ are highly productive marshes located in central Canada.

In which river zone would an ecologist look for a deep meandering stream? 

Phytoplankton flourish most abundantly in the bathyal zone on the ocean.

Name the three major types of plankton.Which of these is responsible for the majority of the primary productivity near the ocean surface?

What is required for a coral reef to thrive? 

One of the ecological services that marine ecosystems provide is nutrient cycling.

In which aquatic zone are ecosystems with the world's highest net primary productivities per unit area found? 

Which statement does NOT explain why coastal wetlands are important? 

What is a characteristic of an oligotrophic lake? 

Toxic ____________________ will first affect the limnetic zone of a lake.

Classification of the vertical zones of the open sea (euphotic,bathyal,and abyssal)is based primarily on ___________________________________.

What is the deepest part of the ocean? 

During which season would an ecologist expect a temperate lake to demonstrate "turnover"? 

What is characteristic of the euphotic zone?