A source of Energy.
water food and freindship
Plankton and phytoplankton.
Producers or autotrophs.
becuse thay do
Producers
yes they always begin with plants
Yes, because eventually an animal HAS to eat plants.
Food chains start with green plants because only green plants are able to convert the suns energy into sugars that all creatures including plant need to grow.
the sun
Without the producers, the food chains could not exits.
food web