science exam (bio) Flashcards
what is biology
the science that seeks to understand, explain, and control the living world
ecology
the study of relationships between living and non-living things
biotic factors. examples?
A living organism. Ex. plants, animals, humans, etc
abiotic factors. examples?
A non-living organism. Ex. sun, air, sky
ecosystem
a complex, self-regulating system in which living things interact with each other and with non-living things
speices
group of similar organisms/animals
niche
all interactions of a given species with its ecosystem
community
populations of different species that interact in an area
population
group of members of the same species that live in an area
habitat
place where an organism lives
biome
large geographic region that contains similar ecosystems
biosphere
the part of the planet where life exists
atmosphere
layers of gases that surround the earth
contains water, carbon dioxide, and upper mantle
lithosphere
earth’s solid, outer layer
includes the hard crust and upper mantle
hydrosphere
all water on earth
97% of this water is salt water
biodiversity
of different types of organisms in an area
producer
organisms that carry out photosynthesis
consumer
organisms that eat other organisms to obtain energy because they cannot produce their own food
primary consumer
eats producers