The branch of biology dealing with the relations and interactions between organisms and their environment, including other organisms. Unit: Ecology: Vocabulary The following a list of vocabulary terms that will be used in the study of Ecology. Copy each of the following in your science notebook and provide a definition for each using the following website. http://dictionary.reference.com/science/ Key Vocabulary Ecology Biotic Autotrophic Heterotrophic Herbivores Carnivores Omnivores Food Chain Food Web Consumers Primary Consumers Secondary Consumers Tertiary Consumers Symbiosis Mimicry Commensalism Parasitism Producer Decomposer