SS2 Biology – Circulatory System

CONTENT Protective Function of Blood Circulatory System in Mammals Blood Vessels and the Heart   PROTECTIVE FUNCTION OF BLOOD The blood performs two basic functions in mammals and these are:

SS2 Biology – Transport System

CONTENT Transport system Need for transport system Relating transport in lower organisms to that in higher organism Transport material in animals and plants Diverse mechanisms of transportation in some organisms

SS2 Biology – Digestive System 2

CONTENT   VERTEBRATES Digestion in Birds Digestion in Rabbits   DIGESTION IN BIRDS Birds do not have teeth but horny beak which they use for feeding. In many birds, the

SS2 Biology – Digestive System 1

CONTENT INVERTEBRATES Feeding in Hydra Digestion in Planaria Digestion in Earthworm Digestion in insects (Grasshopper)   VERTEBRATES Digestion in Birds Digestion in Rabbits   FEEDING IN HYDRA    Hydra feeds

SS2 Biology – Mammalian Teeth

CONTENT Types of teeth Structure of a tooth Dentition and dental formula Adaptation of dentition to mode of feeding   TYPES OF TEETH Human beings have two sets of teeth

SS2 Biology – Tissue and Supporting System 2

SUPPORTING TISSUES IN PLANTS Contents Axial and Appendicular Skeleton Supporting Tissues in Plants   The needs for supporting tissues in plants are for: definite shape; strength; rigidity; resistance against external

SS2 Biology – Tissue and Supporting System

TISSUE AND SUPPORTING SYSTEM Contents Introduction Forms of Skeleton Types of Skeleton Functions of the Skeleton Support in Vertebrates   INTRODUCTION To carry out life processes, all organisms (plants and

SS1 Biology – Reproduction

In today’s class, we will be talking about reproduction. Enjoy the class!   Reproduction Reproduction is the ability of living organisms to produce offspring’s i.e. new individuals of their kind

SS1 Biology – Conservation of Natural Resources

In today’s class, we will discuss Conservation of natural resources.  Conservation of Natural Resources   Meaning of conservation Conservation is the diligent and wise use of the earth’s resources to

SS1 Biology – Adaptation

In this class, we will discuss adaptation. Enjoy the class! Adaptation Adaptation is defined as the ability of an organism to live successfully in a particular habitat as a result