'Organisms increase' presentation slideshows

Chapter 1: Introduction: Themes in the Study of Life

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Topic 21 Productivity

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Keeping Healthy Revision

Keeping Healthy Revision. Natural Barriers. Skin Sweat Tears Stomach acid. Infection. Micro-organisms increase in numbers rapidly. The symptoms of a disease are caused by the micro organisms or their toxins. The body has an immune system to fight infection. White Blood Cells.

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Life Processes

Life Processes. If something is alive it must carry on several different activities in order to stay alive. These are the life processes. 1. Nutrition. When an organism takes materials from its environment and changes it into forms it can use Ingestion- take in food

500 views • 10 slides