# Biodiversity and classification of micro-organisms notes

> CAPS-aligned study notes for Biodiversity and classification of micro-organisms in Grade 11 Life Sciences. Browse the sections below for explanations, worked examples and exam preparation.

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## Sections in Biodiversity and classification of micro-organisms

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- [Structure & Characteristics of Micro-organisms](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-and-classification-of-micro-organisms/structure-and-characteristics-of-micro-organisms) — Structure & Characteristics of Micro-organisms Micro-organisms (microbes) are living things that are too small to be seen with the naked eye and must be viewed using a microscope. Despite their tiny…
- [Roles & Symbiotic Relationships of Micro-organisms](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-and-classification-of-micro-organisms/roles-and-symbiotic-relationships-of-micro-organisms) — Roles & Symbiotic Relationships of Micro-organisms While some micro-organisms cause disease, the vast majority play essential and beneficial roles in maintaining the balance of ecosystems.…
- [Diseases Caused by Micro-organisms](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-and-classification-of-micro-organisms/diseases-caused-by-micro-organisms) — Diseases Caused by Micro-organisms A pathogen is a micro-organism that causes disease. Diseases caused by micro-organisms are called infectious diseases because they can be spread (transmitted) from…
- [Immunity, Antibiotics & Vaccinations](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-and-classification-of-micro-organisms/immunity-antibiotics-and-vaccinations) — Immunity, Antibiotics & Vaccinations The human body has a sophisticated defence system to protect itself against invading pathogens (disease-causing micro-organisms). This defence involves multiple…

## Other Life Sciences topics

- [Gaseous exchange](https://www.hlayiso.com/grade-11/life-sciences/notes/gaseous-exchange)
- [Excretion](https://www.hlayiso.com/grade-11/life-sciences/notes/excretion)
- [Biodiversity in plants and reproduction](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-in-plants-and-reproduction)
- [Biodiversity in animals](https://www.hlayiso.com/grade-11/life-sciences/notes/biodiversity-in-animals)
- [Population ecology](https://www.hlayiso.com/grade-11/life-sciences/notes/population-ecology)
- [Human impact on the environment](https://www.hlayiso.com/grade-11/life-sciences/notes/human-impact-on-the-environment)
- [Photosynthesis](https://www.hlayiso.com/grade-11/life-sciences/notes/photosynthesis)
- [Animal nutrition](https://www.hlayiso.com/grade-11/life-sciences/notes/animal-nutrition)
- [Respiration](https://www.hlayiso.com/grade-11/life-sciences/notes/respiration)

## Frequently asked questions

### What is covered in Biodiversity and classification of micro-organisms for Grade 11 Life Sciences?

The Biodiversity and classification of micro-organisms section covers all key concepts from the Grade 11 Life Sciences CAPS curriculum, including detailed explanations, worked examples, and exam preparation tips.

### Are the Biodiversity and classification of micro-organisms notes free?

Yes. Each section has a free preview, and a free Hlayiso account lets you read the full notes.

### How do these notes help with exam preparation?

Our Biodiversity and classification of micro-organisms notes are CAPS-aligned and include worked examples, common mistakes to avoid, and exam tips — everything you need to prepare for your Grade 11 Life Sciences exams.

### Are there quizzes for Biodiversity and classification of micro-organisms?

Yes. Hlayiso has quizzes for Biodiversity and classification of micro-organisms in Grade 11 Life Sciences. Test your understanding after reading the notes.

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