Chapter 18 Vocabulary

the study of the interactions of living organism with one another and with their environment

• ecology
• biotic
• interactions
• community

describes living factors in the environment

• abiotic
• biotic
• biosphere
• prey

describes the nonliving part of the environment, including water, rocks, light, and temperature

• biotic
• biosphere
• abiotic
• omnivore

an organisms that eats only plants

• herbivore
• omnivore
• carnivore
• symbiosis

an organisms that eats only animals

• herbivore
• omnivore
• carnivore
• symbiosis

an organisms that eats both plants and animals

• herbivore
• omnivore
• carnivore
• symbiosis

a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed

• parasitism 
• commensalism 
• mutualism
• symbiosis

a relationship between two organisms in which one organisms benefits and the other is unaffected

• parasitism 
• commensalism 
• mutualism
• symbiosis

a relationship between two species in which both species benefit

• parasitism 
• commensalism 
• mutualism
• symbiosis

a relationship in which two different organisms live in close association with each other

• carrying capacity
• interactions
• food chain
• symbiosis