Ecosystems Flashcards
Study for a test
What is an ecosystem?
A community of living organisms and their interactions with the environment
What is the primary source of Energy in most ecosystems ?
Sunlight
In an ecosystem which organisms are producers?
plants and algae
which process allows plants to produce their own food?
Photosynthesis
what is the correct sequence of a simple food chain
Producer, Consumer, Decomposer
Describe the energy flow in an ecosystem
Energy decreases as it moves up the food chain
what is the role of decomposers in an ecosystem?
breaking down dead organisms
name one primary consumer
rabbit
what happens during the water cycle?
evaporation, condenation, precipitation and collection
what is evaportation?
Water turns into vapor.
what is precipitation?
Water falls as rain or snow.
what is collection?
Water gathers in oceans, lakes, and rivers.
which process forms clouds?
condensation
what gas do plants take in during photosynthesis?
Carbon dioxide (CO2)
What gas do plants release during photosynthesis?
Oxygen (O2)
what is the main function of Chlorophyll in photosynthesis?
absorb light from the sun
what is a food web?
interconnected food chains
which human activities can negatively impact an ecosystem?
deforestation, pollution, overfishing, climate change and habitat destruction
