Classification Of Animals Primary Seven Science Pdf

©2026 S.B.M 0784416726 Page 1 THEME: THE WORLD OF LIVING THINGS TOPIC: CLASSIFICATION OF ANIMALS Read and spell - organism - mechanism - vertebrate - defence Animals - Animals are multi -cellular organisms which obtain energy by feeding on other organisms Characteristics of animals - They feed on other organisms - They have defence mechanism - Their cells lack walls - They can move from one place to another Classification of animals - Classification refers to the grouping of organisms according to their characteristics Factors considered when grouping organisms - Mode of feeding - Mode of reproduction - Body temperature regulatory mechanism - Shared features Groups of animals Lesson 1 ©2026 S.B.M 0784416726 Page 2 Vertebrates - Vertebrates are animals with a back bone and skull Characteristics of vertebrates - They have a back bone - They have skull which protects the brain - They have an endoskeleton - They have two pair s of limbs or fins for location - Their bodies can be divided into tw o similar halves Groups of vertebrates - Worm blooded vertebrates ( Homoiothermic) - Cold blooded vertebrates (poikilothermic) Questions 1. What are vertebrates ? ____________________________________________________________________ _____ 2. Why is a fish regarded as a vertebrate ? ____________________________________________________________________ _____ 3. State any one importance of classifying organism s to a P. 6 child. ____________________________________________________________________ _____ 4. Mention any one characteristic common to all animals. ____________________________________________________________________ _____ 5. Write the meaning of the word classification. ________ ____________________________________________________________ _____ 6. Apart from having backbones, what other characteristic is common in all vertebrates. ____________________________________________________________________ _____ Read and spell - homoiothermic - poikilothermic - mammary gland - fur Warm blooded vertebrates (homoiothermic) - Warm blooded vert ebrates are animals whose body temperature remains constant Groups of warm blooded vertebrates - Mamm als - Birds Mammals - Mammals are …