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Published byCharles Campbell
Modified over 7 years ago
Interactions of Living ThingsEcology Part II Interactions of Living Things
What is an ecological niche?The place where an organism lives and that provides the things the organism needs is called its habitat.
What is an ecological niche?An organism's particular role, or how it makes its living, is called its niche.
Interactions Among Living Things 22.3
Three major types of interactionscompetition predation symbiosis.
How does competition relate to ecosystems?
Competition is the struggle between organisms to survive in a habitat with limited resources.
Explain how predator-prey relationships affect populations in an ecosystem.
Predation is an interaction in which one organism kills and eats another organism.Prey Predator
Predators have adaptations that help them catch and kill their prey.
Prey organisms have adaptations that help them avoid being caught and eaten.
Predation can have a major effect on the size of a population.
Symbiosis is a close relationship between two species that benefits at least one of the species.
Mutualism : both species benefit.
Commensalism : one species benefits ; the other is neither helped nor harmed.Demodex mites
Parasitism: Parasite (lives on or in) benefits; host is harmed.Tapeworm head
Interactions Among Living Things A 7 th Grade science presentation.
Section 1 Interactions Among Living Things
B(4-3) How do organisms interact? Copyright © Houghton Mifflin Harcourt Publishing Company Vocabulary competition symbiosis parasite host.
Ecosystems 8.11 The student knows that interdependence occurs among living systems and the environment and that human activities can affect these systems.
How Species Interact with Each Other
Relationships Among Organisms Biology EOCT Review.
Populations Section #2: How Species Interact With Each Other.
22.3 Interactions Among Living Things
What Do We Know? 1. All living things need water to survive. 2. All living things grow, develop and reproduce. 3. Some living things breathe. 4. All living.
Parts of an Ecosystem 1. Habitat- The place where an organism lives and that provides the things it needs. 2. Biotic factors- The living parts of an ecosystem.
Population – group of individuals of the same species living in the same area, potentially interacting Community – group of populations of different species.
Lesson 3-How Do Organisms Interact? - Observe how organisms help each other - Describe how organisms compete within an ecosystem - Explain symbiotic relationships.
6.1 Relationships in the Ecosystem. Predators and Prey Predator= A consumer that actively hunts other living organisms. Prey= The organism that a predator.
Feeding Relationships and Symbiosis State Standards 6th – Life #8 Describe how organisms may interact with one anther 7th - Life #2 -Investigate how.
21-3 Interactions Among Living Things o Every organism has a variety of adaptations that are suited to its specific living conditions. o Adaptations are.
What is the greenhouse effect?. AGENDA: 1.Finish PSQ: Greenhouse Effect 2.Notes 4-2: What shapes an Ecosystem? 3.Using Predators to Manage Population.
How Do We Relate?. Relationships Many organisms have developed a close relationship with other organisms of different species. These close relationships.
Ch.21 Populations & Communities Section 3: Interactions Among Living Things.
4-2: What Shapes an Ecosystem? Biology 1. Ecology tell you where an organism lives Ecology also tells you about the climate What shapes the ecosystem.
How Living things interact
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