life and living Flashcards
what is a variable?
part of an ecperiment that can change
what is photosynthesis?
a process where green plants use light energyto make sugars they need to survive.
what is given off as a waste product during photosynthesis?
oxygen
what is respiration?
the eprocess in the cells where glucose os broken down and energy is released
give the chemichal equation for respiraion
Glucose + oxygen ————> energy + carbon dioxide + water
what is ecology?
the study of the interactions between organisms with each other and their abiotic environment
what is a population?
a group of one kind of organism all living at the same place at the same time
what is a community?
a group of different populations that all share the same habitat
what is an ecosystem?
a self mantaining community or group of communities together with the biotic and abiotic factors that affect them
what is a biosphere?
all the ecosystems on the earth together.
how big is an ecosystem?
an ecosystem has no particular size but is a clearly defined space.
what interactions exist?
there are interactions between different kinds of living organisms and the abiotic environment
what to organisms need to do in order to survive?
they need to adapt to the environment and cope with the changes in it
what are producers?
any organism that can make their own food (photosynthesis)
what are consumers?
organisms that rely on other organisms for food
primary and secondary consumer
