PPT-Mutualism & Commensalism

Photo of hawk moth potentially pollinating Dianthus from Wikimedia Commons Facilitation in other words means benefits outweigh costs Commensalism 0 Mutualism . Most organisms have adaptations that help protect them against their predators. Cacti have thorns. Porcupines have quills. Monarch butterflies have toxins and . protective . colouration. The interactions between producers and consumers typically result in co-evolution. Can you think of examples of relationships where both people/ organisms benefit?. Can you think of examples of relationships where one organism benefits while the other is harmed?. Symbiotic Relationships. 3 types of Symbiosis. It literally means “together life”. It refers to organisms that live in close approximation; often they cannot live without each other.. Top flap). Parasitism (right flap). 7. th. Grade Science. Objectives of the Symbiotic Relationships Lesson. Students will investigate how organisms or populations interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other. (Ohio Academic Standards LS 7.1). Photo . of hawk moth potentially pollinating . Dianthus. from Wikimedia Commons . Facilitation . – in other words, “+” means benefits outweigh costs. Commensalism. . =. +/0. Mutualism. . =. th. Grade Science. Objectives of the Symbiotic Relationships Lesson. Students will investigate how organisms or populations interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other. (Ohio Academic Standards LS 7.1). th. 2016. Shape of the Day. . 10 – 15 minutes. – Run through lecture at breakneck speed. . Rest of Block. – Organism Research . in . Library . Learning Objectives . . Define symbiosis . Define . in an. ECOSYSTEM . interact?. ORGANISMS . in an ecosystem interact with plants, animals and their. ENVIRONMENT. .. INTERACTIONS . can cause populations to. INCREASE . or . DECREASE. .. INTERACTIONS . Ecology. : the relationships between living things and their environment. .. Terms to Know:. Biotic. – all living organisms. Abiotic. . – all non-living things (air, water, light, rocks, soil,…). ©Copyright2014 – all rights reserved . www.cpalms.org. Always, . because. …. Sometimes, . because. …. -. . Never, . because. …. Is it important to protect your home?. ©Copyright2014 – all rights reserved . ECOLOGICAL RELATIONSHIPS Population – group of individuals of the same species living in the same area, potentially interacting. Community – group of populations of different species living in the same area, Ants and acacia trees. Symbiosis. Ecology Unit. Chapter 2. Take out your journals and copy down the “I Can” statement. for #6 in your Electronic Journals.. Symbiosis. What is symbiosis?. Close. and . What is Ecology?. Ecology = . the study of . relationships. among living organisms and the interactions with their . environments. . . Ecologist = . a scientist who studies ecology . Perform tests in organisms’ environments. Science. Lesson 14: challenge answer . Investigate another example of a mutualistic relationship and make note of the benefits each organism receives. . Senita cactus and senita moth – moth collects pollen and cactus can reproduce. .