Indiana Aquatic Pest Management (Category-
5) Study Guide 2026 Test
1. List the basic differences between algae and aquatic • Algae:
flowering plants. • Simple plants without
true roots, leaves, or flow-
ers.
• Reproduce by cell di-
vision, fragmentation, or
spore spores.
• Aquatic flowering plants
have true roots, leaves and
flowers.
2. List three major types of algae. •Microscopic
• Mat-forming
• Chara
3. Which two types of algae are macrophytes? •Chara
• Mat-forming
4. Name this algae Chara algae
5. Describe the general appearance of microscopic algae •Water can be
(blooms) and the problems that they can create. pea-soup, yellow-green,
red-streaked in color
• It has a foul taste and
odor.
• Sudden die ott of
blooms, depleates oxygen
, Indiana Aquatic Pest Management (Category-
5) Study Guide 2026 Test
and causes fish kills.
• It causes toxic conditions
for aquatic life
6. Describe the general appearance of mat-forming al- • Free floating
gae and the problems they can cause. • Blue, green or yellowish
in color.
• Can have black hairlike
strands.
• Slimy texture.
• Foul odor
• It blocks sunlight
from reaching beneficial
plants.
• It can block access to
recreational areas.
7. List the four groups of aquatic flowering plants. Submersed
• Free-floating
• Rooted floating
• Emergent
8. Cattail (Typha) is an example of what aquatic flowering Emergent plants
plant group?
9. Duckweed (Lemna) is an example of what aquatic flow- Free-floating plants
ering plant group?
5) Study Guide 2026 Test
1. List the basic differences between algae and aquatic • Algae:
flowering plants. • Simple plants without
true roots, leaves, or flow-
ers.
• Reproduce by cell di-
vision, fragmentation, or
spore spores.
• Aquatic flowering plants
have true roots, leaves and
flowers.
2. List three major types of algae. •Microscopic
• Mat-forming
• Chara
3. Which two types of algae are macrophytes? •Chara
• Mat-forming
4. Name this algae Chara algae
5. Describe the general appearance of microscopic algae •Water can be
(blooms) and the problems that they can create. pea-soup, yellow-green,
red-streaked in color
• It has a foul taste and
odor.
• Sudden die ott of
blooms, depleates oxygen
, Indiana Aquatic Pest Management (Category-
5) Study Guide 2026 Test
and causes fish kills.
• It causes toxic conditions
for aquatic life
6. Describe the general appearance of mat-forming al- • Free floating
gae and the problems they can cause. • Blue, green or yellowish
in color.
• Can have black hairlike
strands.
• Slimy texture.
• Foul odor
• It blocks sunlight
from reaching beneficial
plants.
• It can block access to
recreational areas.
7. List the four groups of aquatic flowering plants. Submersed
• Free-floating
• Rooted floating
• Emergent
8. Cattail (Typha) is an example of what aquatic flowering Emergent plants
plant group?
9. Duckweed (Lemna) is an example of what aquatic flow- Free-floating plants
ering plant group?
