Category Biology Lesson Notes For JSS1 – SS3

Welcome to our collection of Biology lesson notes covering all topics for SS 1 to SS 3 students. These notes are aligned with the WAEC and NECO syllabus, providing a structured approach to mastering key concepts in Biology. From cell biology to ecology, you’ll find lessons on the essential topics you need to excel in your exams.

Our resources are designed to support both independent study and classroom learning, helping you build a strong foundation in Biology.

Whether you’re revising for your exams or seeking to understand complex concepts, these notes and topics will guide your learning every step of the way.

See our comprehensive Biology lesson notes and topics for SS 1 to SS 3 students. Perfect for WAEC and NECO preparation.

Placement

Biology 400a

What is placentation? This is the arrangement of the ovules in an ovary. Marginal placentation: The placenta appears as one ridge on the ovary wall e.g. bean. Parietal placentation: The placenta is on the ridges on ovary wall. Ovules are…

Pollination

Biology 400a

What is pollination? This is the transfer of pollen grains from the anther to the stigma. Types of pollination Self pollination is the transfer of pollen grains from the anther of one flower to the stigma of the same flower.…

Asexual Reproduction

Biology 400a

What is Asexual reproduction? Asexual reproduction is the formation of offspring from a single parent. The offspring are identical to the parent. Types of Asexual Reproduction. Binary fission This involves the division of the parent organism into two daughter cells.…

The Ecosystem

Biology 400a

What is Ecosystem? The community and the abiotic or non-living environment together make up an ecosystem or ecological system. In this system energy flow is clearly defined from producers to consumers and nutrient cycling takes place in paths that links…

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