Nutrition in Animals

Biology SSS 1 Second Term

WEEK 4

Nutrition in Animals

Performance Objectives

Student should be able to:

1. List the classes of foods and give appropriate examples

2. Differentiate the various modes of nutrition

3. Carry out simple food tests

Content

All living organisms (both plants and animals) need food substances for their survival and daily activities. All living organisms derive energy needed for growth and basic functioning of the organism from food substances. Plants are called autotrophs because they manufacture their food through photosynthesis. Animals on their own cannot manufacture their food directly and so depend on plants and they are called heterotrophs.

Classification of animals based on the type of food they feed on

On the basis of the…