1 What is Ecology? Chapter 2 Goal 5 copyright cmassengale

Goals and Objectives Goal 5: TSWBAT develop an understanding of the ecological relationships among organisms. Objectives: TSWBAT: 5.01 Investigate and analyze the interrelationships among organisms, populations, communities, and ecosystems Analyze the flow of energy and the cycling of matter in the ecosystem

3 I.What is Ecology?? A.The study of interactions that take place between organisms and their environment. B.It explains how living organisms affect each other and the world they live in. A.The study of interactions that take place between organisms and their environment. B.It explains how living organisms affect each other and the world they live in. copyright cmassengale

4 II.Habitat & Niche A.Habitat is the place a plant or animal lives B.Niche is the role of an organism in an ecosystem A.Habitat is the place a plant or animal lives B.Niche is the role of an organism in an ecosystem copyright cmassengale

5 III.The Nonliving Environment A.Abiotic factors- the nonliving parts of an organism’s environment. 1.Examples include currents, soil, light, temperature, air and moisture. B.Abiotic factors affect an organism’s life. A.Abiotic factors- the nonliving parts of an organism’s environment. 1.Examples include currents, soil, light, temperature, air and moisture. B.Abiotic factors affect an organism’s life. copyright cmassengale

6 IV.The Living Environment A.Biotic factors- all the living organisms that inhabit an area. 1.All organisms depend on others directly or indirectly for food, shelter, reproduction, or protection. A.Biotic factors- all the living organisms that inhabit an area. 1.All organisms depend on others directly or indirectly for food, shelter, reproduction, or protection. copyright cmassengale

7 Abiotic or Biotic?

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10 Abiotic or Biotic?

11 V.Levels of Organization copyright cmassengale

12 A.What are the Simplest Levels? 1.Atom 2.Molecule 3.Organelle 4.Cell 5.Tissue 6.Organ 7.System 1.Atom 2.Molecule 3.Organelle 4.Cell 5.Tissue 6.Organ 7.System copyright cmassengale

13 B.Levels of Organization 1.Ecologists have organized the interactions an organism takes part in into different levels according to complexity. copyright cmassengale

14 VI.1 st Level of Organization A.Organism: An individual living thing that is made of cells, uses energy, reproduces, responds, grows, and develops copyright cmassengale

15 VII.2 nd Level of Organization A.Population: A group of organisms, all of the same species, which interbreed and live in the same place at the same time.

16 VIII.3 rd Level of Organization A.Community: All the populations of different species that live in the same place at the same time. copyright cmassengale

17 IX.4 th Level of Organization A.Ecosystem: Populations of plants and animals that interact with each other in a given area with the abiotic components of that area. (terrestrial or aquatic) copyright cmassengale

18 X.5 th Level of Organization A.Biosphere: The portion of Earth that supports life. A.Biosphere: 1. The portion of Earth that supports life. copyright cmassengale

19 2.Life is found in air, on land, and in fresh and salt water. copyright cmassengale

20 What level of organization? copyright cmassengale

21 What level of Organization?

22 What level of Organization?