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20 terms

Science Test 2

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