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54 terms

4.1: COMMUNITIES AND ECOSYSTEMS

Some key terms and questions from 4.1
STUDY
PLAY
Ecology
The study of relationships between living organisms and between organisms and their environment
organisms
Ecology: The study of relationships between living _________ and between organisms and their environment
relationships
Ecology: The study of ____________between living organisms and between organisms and their environment
environment
Ecology: The study of relationships between living organisms and between organisms and their ___________
Ecosystem
A community and its abiotic environment
The study of relationships between living organisms and between organisms and their environment
Ecology
A community and its abiotic environment
Ecosystem
community
Ecosystem: A _________and its abiotic environment
abiotic
Ecosystem: A community and its _________environment
A group of organisms of the same species who live in the same area at the same time
Population
Population
A group of organisms of the same species who live in the same area at the same time
species
Population: A group of organisms of the same ______ who live in the same area at the same time
organisms
Population: A group of __________ of the same species who live in the same area at the same time
a group of populations living and interacting with each other in an area
Community
Community
a group of populations living and interacting with each other in an area
a group of populations living and interacting with each other in an area
Community: a group of ____________ living and interacting with each other in an area
area
Community: a group of populations living and interacting with each other in an ______
a group of organisms which can interbreed and produce fertile offspring
species
species
a group of organisms which can interbreed and produce fertile offspring
organisms
species: a group of _______which can interbreed and produce fertile offspring
fertile
species: a group of organisms which can interbreed and produce_________offspring
the environment in which a species normally lives or the location of a living organism
habitat
habitat
the environment in which a species normally lives or the location of a living organism
environment
habitat: the __________in which a species normally lives or the location of a living organism
location
habitat: the environment in which a species normally lives or the ________ of a living organism
biosphere
consists of interdependent and interrelated ecosystems
autotroph
producer - organism that uses an external energy source to synthesise organic matter from inorganic raw materials
heterotroph
consumer - organism that ingests other organic matter that is living or recently killed
detritivore
organism that ingests dead organic matter
saprotroph
decomposer - organism that lives in or on dead organic matter, secreting digestic enzymes into it and absorbing the products of digestion
producer
autotroph
consumer
heterotroph
decomposer
saprotroph
food chain
sequence of trophic relationships, where each member in the sequence feeds on the previous one
trophic
food chain: sequence of ________relationships, where each member in the sequence feeds on the previous one
food web
a diagram of all the trophic relationships in a community
trophic level
the level at which an organism feeds in a food chain
chain
trophic level: the level at which an organism feeds in a food _____
organism
trophic level: the level at which an ________ feeds in a food chain
light
initial energy source for almost all communities
initial
"light is the ______energy source for almost all communities"
energy
"light is the initial _______source for almost all communities"
loss
causes of energy _____ in food chains: material not consumed or material not assimilated, heat loss through cell respiration
respiration
causes of energy loss in food chains: material not consumed or material not assimilated, heat loss through cell ________
consumed
causes of energy loss in food chains: material not ________ or material not assimilated, heat loss through cell respiration
heat
causes of energy loss in food chains: material not consumed or material not assimilated, ____ loss through cell respiration
efficient
when energy transformations take place, the process is commonly only 10 - 20% _______
transformations
when energy ______ take place, the process is commonly only 10 - 20% efficient
energy pyramid
shows the energy flow from one trophic level to the next in a community
energy per unit area per unit time
units of pyramids of energy
energy
"________ can enter and leave an ecosytem, but nutrients must be recycled"
ecosytem
"energy can enter and leave an ________, but nutrients must be recycled"
recycled
"energy can enter and leave an ecosytem, but nutrients must be _________"
nutrients
"energy can enter and leave an ecosytem, but ________ must be recycled"