Biology Secondary Form 3

Longhorn Secondary Biology Series is a course developed in line with the curriculum implemented in 2003. It fulfills all the goals and targets of the secondary Biology syllabus. It is approved by the Ministry of Education to be used in secondary school in Kenya. 

Longhorn Secondary Biology Series makes learning Biology easier and enjoyable by: 
• presenting Biology as a practical oriented subject which helps the learner in being initiative in the learning process. 
• presenting the contents in well and logically organised topics which facilitate sequential transition from one concept to the next. 
• providing activities and exercises which allow performance evaluation in each topic. 
• having a user-friendly approach which is well-centered on the learner's own environment for easier understanding. 
• Integration of text and illustrations which aid and demonstrate concepts for easier understanding. 
• taking care of learners with special needs. 

Longhorn Secondary Biology Form 3 adequately and appropriately covers the topics outlined in the Biology syllabus for Form 3. 

The book is written by highly experienced authors and examiners of Biology.

1. Classification II

Lead	Chapter
1.1.	Interdependence among organisms in an ecosystem Free chapter!
1.2.	Kingdom Monera
1.3.	Kingdom Protoctista
1.4.	Kingdom Fungi
1.5.	Kingdom Plantae
1.6.	Kingdom Animalia I
1.7.	Kingdom Animalia II
1.8.	Construction and use of a simple dichotomous key
1.9.	Unit Summary and End of Unit Test 1

2. Ecology

Lead	Chapter
2.1.	Ecology
2.2.	Concepts of Ecology
2.3.	Factors in an ecosystem
2.4.	Energy flow in an ecosystem
2.5.	Population estimation methods
2.6.	Adaptations of plants to various habitats
2.7.	Effects of pollution on humans and other organisms
2.8.	Human diseases
2.9.	Unit Summary and End of Unit Test 2

3. Reproduction in plants and animals

Lead	Chapter
3.1.	Reproduction
3.2.	Chromosomes, mitosis and meiosis
3.3.	Asexual reproduction
3.4.	Sexual reproduction in plants
3.5.	Fruit, seed dispersal and germination
3.6.	Types of fruit
3.7.	Sexual reproduction in animals
3.8.	Unit Summary and End of Unit Test 3

4. Growth and development

Lead	Chapter
4.1.	Growth and development
4.2.	Growth and development in plants
4.3.	Primary and secondary growth
4.4.	Growth and development in animals
4.5.	Unit Summary and End of Unit Test 4

5. Extras

Lead	Chapter
5.1.	Glossary