What is the definition of an ecosystem? An ecosystem is an area where organisms interact with one another and non living parts of the environment. What is the difference between an abiotic and biotic part of an ecosystem? Abiotic parts are not living, and biotic parts are living. What are some examples of abiotic parts? Climate, nutrients in soil, water, air, light. What are examples of biotic parts? Animals, plants, and bacteria. What is a population? A group of organisms of the same species living together in an environment. What is a community? Many populations living together. What is a habitat? The area of the ecosystem where the organisms live. What is a niche? The role that the organism in the ecosystem. What is diversity? The variety of species in a certain ecosystem. Where can we find the most diversity? Ecosystems close to the Equator. Where does energy begin? With the sun. What is a producer? Anything that can create its own food, like a plant through photosynthesis. What is a consumer? Any organism that eats other organisms. What is a primary consumer? An organism that eats only plants. What is a secondary consumer? An organism that consumes meat. What is a food chain? A sequence of producers and consumers eating one another. What is an omnivore? An animal that eats both plant and animals. For Chapters 4-5
The Case of the Filched 
It's In the Genes 