Zooplankton
Reeds
Phytoplankton
Kelp
Elbow lake
Oxbow lake
Convex lake
Curved lake
Tributary
Wetland
Watershed
Haboob
Otter
Fish
Mosquito
Whiptail lizard
Alpha predator
Beta predator
Top dog
Omega predator
A food chain enables animals to communicate to each other within their environment.
River
Pond
All of the above
Bog
Producer
Composter
Decomposer
Hearing
Olfaction
Sight
Breathing