Unit 15 Topic 1 Flashcards
the non living factors in an environment
Abiotic factors
the living factors in an environment
Biotic factors
a single living thing
organism
A group of individuals of the same species living in the same place at the same time
Population
A group of different species living together in the same place at the same time
community
A group of communities living together in the same place at the same time
Ecosystem
movement of individuals into a population
immigration
movement of individuals out of a population
emigration
The study of populations over time
Demography
how many births in a population in a given time
Birth rate
how many deaths in a population in a given time
Death rate
any factor in an environment that depends on the number of individuals in the population
Density dependent factors
any factor in an environment that does not depend on the number of individuals in the population
Density independent factors
A factor that is in short supply in an environment and thus limits the number of individuals that can be supported in an ecosystem
Limiting factor
the abiotic conditions that a particular species can withstand
Range of tolerance
