Food chain and food web

construct food chains and food webs

food (energy) flows from one organism to another
Plants are

called producers because they produce food.
When plant-eating animals eat plants, some of the plant's’ energy pass to animals. These animals are called as primary consumers.
Animals that eat other animals are called as secondary consumers.

chains and pathways in which energy (food) flows through a

group of organisms.
Decomposer organisms that break down dead organisms

Put these organisms into the table: caterpillar, frog, leaf, small

fish, phytoplankton, snake, tuna, zooplankton. Use one word only once.





After filling the table answer questions below:
Compare two ecosystems and show: one similarities and one difference between food chains.
These ecosystems also have quaternary(4th) consumer. What quaternary consumers can be added to ecosystems?

Put these organisms into the table: caterpillar, frog, leaf, small

fish, phytoplankton, snake, tuna, zooplankton. Use one word only once.

introduced into Australia. As there were no predators of rabbits

in continent, rabbits started to reproduce very fast. Big numbers of rabbits highly affected agriculture and other living organisms. Causing millions of dollars of damage to crops.