PRINCIPLES OF ECOLOGY Chapter 2 Organisms Their Environment
- Slides: 23
PRINCIPLES OF ECOLOGY Chapter 2
Organisms & Their Environment Ch. 2, Sec. 1
What is Ecology? • Ecology = study of interactions between organisms & their environment
Think, Pair, Share 1. Explain the difference between a food chain and a food web? 2. Draw an example of each.
• Disruptions to the environment can ripple throughout the entire ecosystem
Biosphere • Biosphere = parts of Earth and its atmosphere that support life, from the sky down to the bottom of the ocean
Living vs. Nonliving • Biotic Factors • = the living parts of an ecosystem Abiotic Factors = the nonliving parts of an ecosystem (sun, temperature, p. H, gasses, water) that are part of an organism’s life
Think, Pair, Share 3. List the levels of organization starting with atoms and ending with organism.
Levels of Organization 12. Biosphere – portion of the Earth that supports living things
11. Ecosystem = the biotic & abiotic parts of an environment found in a particular place – The biosphere is made up of many different ecosystems
10. Communities = all the interacting living organisms in an area, all the different species
9. Populations = all members of the same species living in one place, at one time
Organism = the individual organism
Organisms in Ecosystems • Habitat = the place where an organism lives out its life • Niche = all strategies & adaptations a species uses in its environment; an species’ role – What food they eat – What kind of shelter used – Where they reproduce
• Having a specific role in an environment helps reduce competition
Think, Pair, Share 4. Write an example of a parasitic relationship.
Survival Relationships (2 kinds Symbiosis & Predation) A. Symbiosis = organisms living closely together; 3 types of symbiosis
• 1. Mutualism = 2 species of organisms benefit from each other
• 2. Commensalism = one species benefits & the other is neither harmed nor benefited
• 3. Parasitism = one species benefits at the expense of another species
• B. Predation = a predator eats another organism for food
• http: //www. cstephenmurray. com/onlinequ izes/biology/Ecology/typesofinteractionsex amples. htm
Practice • Cowbirds lay their eggs in the nests of other birds and allow them to raise their chick usually at the expense of the offspring of the other species. • What would happen to a forest community if the cowbird population increased?
- Principles of ecology chapter 2 answer key
- Principles of ecology organisms and their relationships
- Levels of organization in the biosphere
- Chapter 2 section 1 organisms and their relationships
- Principles of ecology chapter 2
- Principles of ecology chapter 2 section 1 answer key
- Chapter 2 section 1 organisms and their relationships
- Why do organisms interact with other organisms
- Unicellular vs multicellular activity
- Chapter 1 science and the environment
- Ecological niche
- Difference between environmental science and ecology
- Organisms and the environment
- Chapter 4 section 1 population dynamics answer key
- Principles of ecology 2 flow of energy in an ecosystem
- Where do organisms get their traits?
- Where do all organisms get their energy
- 5 levels of organisms
- Process of grouping things based on their similarities
- Organisms that make their own food
- Financial environment in business environment
- How do arctic wolves adapt to their environment
- Cells and their environment worksheet answers
- The hohokam and anasazi achievements