Exam 24: Freshwater Biomes

Tropical lakes can accumulate large amounts of carbon dioxide.

In freshwater lakes, the level at which photosynthate production equals the energy used up by respiration is known as the

Which of the following properties of a river are greatest near the headwaters?

A pycnocline is

Tropical lakes are isothermal but temperate lakes are never isothermal.

In stratified temperate freshwater lakes, the upper layer is called the

Tropical lakes hold lower amounts of dissolved oxygen than the temperate lakes.

Riparian zones are

Bogs are most common in

Most of the world's freshwater lakes are found in

In an estuary, the number of brackish water species is ________ than the number of freshwater species and ________ then the number of marine species.

The discharge of a river, Q, is related to the velocity, V, average width, W, and average depth, D, by the equation Q=

Aquatic organisms that need high oxygen levels cannot live in the

In a pycnocline, the salt water forms a wedge under the fresh water.

If you could see cattails, cypress and crayfish, in what biome would you most likely be?

In the US Midwest, vernal pools are also known as

Chlorophyll concentration is highest in the _________ part of an estuary.

Which of the following features are greatest in the deposition zone of a river?

Which is not one of the world's largest wetlands?

The least productive lakes are called oligotrophic.