Ecology Flashcards
ecology
Study of organisms and their interactions with their environment and other organisms
Abiotic
non living parts (water; wind soil)
Biotic
living parts ( organisms
organism
individual within a species
population
all members of the same species in an area
Community
several populations living and interacting in an area
Ecosystem
community plus abiotic factors
Biome
many similar ecosystems within a large area
Biosphere
All biomes of the entire world
producer
most energy
primary consumer
herbivors
secondary consumer
carnivores
tertiary consumer
least energy
energy pyramid
model showing energy available for consumers
tropic level
level of energy within the energy pyramid
boimass
all f the mass of living things in the world/area
10% rule
only about 10% of the energy moves on
photosynthesis
process of harnessing energy from the sun to make sugars
cell respiration
process of breaking down sugars to gain energy (oxygen helps break it down)
pop. distribution
how a population of organisms is organized
pop. density
if it is high there is a lot in an area, if it is low then there is few
DDF
disease, starvation, killing each other
DIF
flood, forest fires, drought; can’t change
Growth rate
change in number of individuals over time
