All of the organisms living in an area together with their physical environment
Living and once living parts of an ecosystem
Non-Living parts of the ecosystem
An individual living thing
Group of organisms that can mate to produce fertile offspring
All the members of the same species at the same place at the same time
A group of various species that live in the same place and interact with each other
The place an organism lives
To describe the survival and reproduction of organisms with particular traits
The selective breeding of organisms by humans for specific characteristics.
A change in the genetic characteristics of a population from one generation to the next
Inherited trait that increases an organisms chance of survival and reproduction in a certain environment
Ability of one or more organisms to tolerate a particular chemical designed to kill it
The unique role of a species within an eco-system
Relationship in which different individuals compete for a limited resource
An organism that lives by preying on other organisms.
Relationship between parasite and its host
Close relationship between two species in which each species benefits from each other
A relationship in which one species benefits while the other is neither harmed or benefited
Relationship in which two species live in close association
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