marine+food+webs

There are three types of marine organisms: All organisms need sunlight and nutrients.As a result most organisms live in the upper 100 meters. The sunlight in the oceans reaches 100-300 meters.
 * **//Plankton: free-flating microscopic plants and animals. //**
 * **//Nektons: all organisms that swim actively in open water. //**
 * **//Benthos: all organisms that live on the ocean floor. //**
 * Plankton form the base of the very complex food web in the ocean. Here are two types of plankton:**
 * **Phytoplankton: make their own food.**
 * **Zooplankton: eat other organisms for food.**
 * Examples of nektons: dolphins, fish, squid, and turtles.**
 * Examples of benthos: oysters, sea stars, and crabs.**
 * Plankton are the base for every organisms. They are then eaten by larger organisms who are eaten by even larger organisms.**