Chapter 29, Problem 2FIB

Summary Introduction

Introduction:

All living organism requires energy and nutrients for their survival. Energy and nutrients enter the ecosystem through photosynthesis. All the photosynthetic organisms including plants, algae, and photosynthetic bacteria acquire nutrients from abiotic components of ecosystem. Photosynthetic organisms form the first trophic level in an ecosystem. They are called as producers or autotrophs because they prepare their food by themselves using inorganic nutrients and solar energy.