Esotropia (from Greek eso meaning inward and trope meaning a turning), is a form of strabismus, or squint, in which one or both eyes turns inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a cross-eyed appearance.
In the process of intracellular digestion, lysosomes are the main  organelles. Lysosomes contain enzymes that are made by cells, and  their primary function is to digest thiâ¦ngs. Making the world better, one answer at a time.
Non-insect benthic macroinvertebrates include crayfish, clams, snails, worms, and leeches. Of the two million known insects, 80,000 spe-cies depend on the freshwater environment for all or part of their life cycle; approximately 5,000 freshwater species have been described in North America.unctional Feeding Groups. Freshwater macroinvertebrates are divided. into various groups based on feeding habits, called. functional feeding groups. . The classification of a func-. tional feeding group is based on food preference. and how an organism eats. Table 6-2 summarizes. general functional feeding groups.