Mostly aquatic (sea and fresh water) but some can live in humid environments. Free living ... experiments to look at competition between triclads and leeches. ...
Free-living scavengers & carnivores, mainly marine & freshwater ... snail. SCHISTOSOMIASIS. 200 million people - about 1million deaths a year. FLATWORM. CLASS 3 ...
life cycle of the hydatid tapeworm, Echinococcus granulosus ... http://www.biosci.ohio-state.edu/~parasite/taenia.html. human tapeworm: Taenia spp. ...
Autotrophic--Acquire energy from sunlight & materials from non-organic sources ... Flowering plants. Submersed only where light reaches. Importance ...