Questions and All Correct Answers
(2025) Updated.
Annual plant - Answer A plant that completes its life cycle in one year
Aquatic - Answer Living in or found near water
Aquatic invasive species AIS - Answer Non-native species that cause economic or
environmental harm
Aquatic pest - Answer AN unwanted organism that directly interferes with human
activities/natural resources
Biennial plant - Answer Plant that requires two growing seasons to complete its life cycle
Emergent plants - Answer Plants that are rooted in the sediment with most of their leaves and
stems extending above the waterline
Free-floating plant - Answer Plant that floats on or beneath the surface of the water
Floating-leaved plant - Answer Plant that is rooted in the lake bottom, but its leaves and
flowers float on the water surface
Littoral zone - Answer Zone near the shoreline where water is typically shallow
Macrophyte - Answer plant that can be easily seen without magnification
Native Species - Answer an organism that has developed and occurs naturally in the area
where it is found
Non-native species - Answer Species introduced by human activities to areas where they do
not naturally occur
, Perennial plant - Answer plant that survives year to year
Public waters - Answer Water basins and watercourses that meet the criteria set forth in
Minnesota Statutes
Rooted plant - Answer Plant that is rooted in the bottom sediments
Submergent plant - Answer plant that has stems or leaves that grow entirely below the surface
of the water
integrated Pest management (IPM) - Answer A sustainable approach to reduce pests to a
tolerable level by using the best balance of cultural, physical, biological, and chemical methods
while minimizing economic, environmental, and health risks
Threshold - Answer The pest level where it is determined that management is needed
Adsorption - Answer binding of pesticides to soil particles
Anaerobic - Answer An aquatic system lacking dissolved oxygen
Dissipation - Answer The act of breaking up and scattering or spreading widely
Degradation - Answer a process by which substances are broken down
Pollinator - Answer the agent that pollinates a plant; often an insect
Toxicity - Answer the degree to which a substance can be harmful to humans and/or animals
Absorption - Answer the movement of pesticide into plants or othe rorganisms
Adjuvant - Answer a substance added to a pesticide to improve its effectiveness, usability, or
safety, such as penetrants, spreader-stickers, storage stabilizers, and wetting agents