BIOL 111 Lecture 7: Ecology Pt3
Document Summary
19 parasitism : when one species lives on 1in another and as one benefits the other is harmed. Competition (cid:8869) occurs because resources are limited (cid:8869) each species actively tries to prevent the other from accessing a resource directcometition-in-terfere. no ) (cid:8869) one species uses a resource. Predation : one organism killing a eating another living one. Mutualism : 2 species interact t both benefit ( ex . cleaner fish ) Insulin one species benefits and the other neither benefits nor surfers acquiring energy (cid:8869) producers convert another form of energy ( ex . sunlight) into chemical energy: plants , algal. Consumers obtain chemical energy directly from food animals. ; heterotrophs - feed on others " (cid:8869) : produce organic matter using chemicals archaea and bacteria. A food chain shows energy flow from one trophic level to the next.
