communities. Flashcards
define ecosystem.
interaction of a community of living organisms (biotic) with non-living (abiotic) parts of their environment.
what is the term used for living and non-living organisms?
living- biotic.
non- abiotic.
define population.
total number of organisms of one species in an ecosystem.
define community.
all the living things in an area.
what factors affect an ecosystem- biotic?
living component of an ecosystem. organisms such as plants and animals.
what factors affect an ecosystem- abiotic?
non-living chemical and physical factors in the environment which affects an ecosystem.
give some examples of abiotic.
carbon dioxide levels.
oxygen levels for water animals.
soil Ph and mineral content.
light intensity.
temperature.
wind intensity and direction.
give some examples of biotic.
one species outcompeting the other, not enough numbers to breed.
new diseased organisms.
new predators arriving.
food availability.
