This document discusses different food chains and webs found in various ecosystems. It examines a marine food chain in the South Pole, a terrestrial prairie food chain, a food chain in the ocean, and a food web in a pond. It also mentions various trophic chains in forests but asks the reader to only select one example.

1. FOOD CHAINS IN
ECOSYSTEMS
NATURAL SCIENCE 5th. YEAR
APRIL 2020

2.  A marine food chain in the South Pole.
Don´t forget decomposers (no olvides los descomponedores)

3.  A terrestrial food chain in the prairie

4.  A food chain in the ocean

5.  Varias cadenas tróficas en el bosque. Elige sólo una.

6.  A food web in a pond