Water Quality

What produces the most oxygen in the world

• grass
• algae
• trees
• all of these equally

Which type of plants have floating leaves and flowers?

• Emergent Plants
• Algae
• Floating Plants
• Submerged

Why type of plants are rooted in shallow water with most of the plant parts above the surface of the water?

• floating
• Submerged
• Algae
• Emergent

Which type of plants are rooted in the muddy bottom and grow entirely below the surface of the water?

• Floating
• Emergent
• Submerged
• Algae

Which aquatic habitat contains the most species and why?

• open water - lots of space
• water's edge -food and cover
• surface film - oxygen
• deep bottom - food and cover

Which aquatic habitat contains the fewest species and why?

• Water's Edge - food and shelter

• Surface Film - Oxygen

• Open Water - no food or cover

• Bottom - food and cover

What is the term the describes algae's niche in the ecosystem?

• primary consumer
• primary producer
• secondary consumer
• decomposer

The type of alga that forms long strands and is often called “pond scum” is

• colonial
• filamentous
• plantlike
• planktonic

These organisms are the best “bioindicators” of water quality:

• aquatic mammals
• fish
• benthic macroinvertebrates
• amphibians

Scuds are also known as

• backswimmers
• dobsonfly larva
• water tigers
• sideswimmers