n. pl. morÂ·pholÂ·oÂ·gies. 1. a. The branch of biology that deals with the form and structure of organisms without consideration of function. b. The form and structure of an organism or one of its parts: the morphology of a cell; the morphology of vertebrates. 2. Linguistics The study of the structure and form of words in language or a language, including inflection, derivation, and the formation of compounds.
First found in Lake Okeechobee in 2007, tropical watergrass is an invasive grass that has already impacted lake ecology by creating massive, impenetrable mats. The floating mats consist of tropical watergrass stems, floating debris, and other live plants.
In these conditions, fish have a hard time getting the oxygen they need from the water. They can even suffocate and die. Keeping a good balance of carbon dioxide and oxygen is one reason why plants and animals are both valuable in a lake. Each makes what the other uses.