populations Flashcards
1
Q
definition of population
A
total number of organisms of a single species interbreeding within a habitat
2
Q
definition of a habitat
A
where organism lives
3
Q
what is a biotic factor?
A
living factor e.g. predator
4
Q
what is an abiotic factor?
A
a non-living factor e.g. light
5
Q
what is the carrying capacity?
A
the max. number around which a population fluctuates in a given environment
6
Q
defintion of ecology?
A
the study of living things and their interactions with each other and their environment
7
Q
definition of community
A
all the members of a species in one area
8
Q
what is population size dependent on?
A
- reproductive rate
- death rate
- immigration
- emigration
9
Q
what are biotic factors increasing population growth?
A
- high birth rate
- adequate food
- ability to adapt
