WI PAT Cat. 5.0 exam 2023 with 100% complete solutions

List 5 roles plants play in a healthy aquatic ecosystem correct answers1. Producing oxygen for other organisms 2. Preventing shoreline erosion 3. Lessening excess nutrients during the growing season 4. Stabilizing the lake bottom 5. Providing food and habitat for fish, waterfowl, and other aquatic animals List 6 ways that excessive plant growth can adversely affect the ecology and uses of a water body correct answers1. Harm the ecology of an aquatic ecosystem 2. Curtail or prevent recreational water uses (swimming, boating, fishing) 3. Impart tastes or odors to drinking water supplies 4. Hamper water treatment operations 5. Adversely affect aesthetics, resort trade, and water-front property values 6. Produce toxins that harm animals that drink the water Name the four groups of aquatic plants and some examples of each. correct answers1. emergent (cattails, arrowhead, bulrushes) 2. submergent (pond weeds, whorled leaved, water celery) 3. floating-leaved (water lilies, duckweed) 4. algae (free-floating, filamentous, rooted) Describe the general growth habits of, means of dispersal, and potential problems caused by emergent aquatic plants. correct answers- Rooted in shallow water or water-saturated soils - Most of the growth occurs above the water line - Spread by an underground root system - Can become very dense and interfere with recreation - Provide important habitat - Control should be very limited (except for purple loosetrife) Describe the general growth habits of, means of dispersal, and potential problems caused by submergent aquatic plants. correct answers***PONDWEEDS***