Historical ideas about living things - PBS Science Grade 7

Historical ideas about living things

Ms. Aseel Samaro

Cells: The Building Blocks of Life!

What makes the dog alive ?

To be considered an organism (a living thing), like the dog, It must be able to do all of these seven processes

Movement : This allows a response to changes Respiration: the transport of oxygen from the outside air to the cells

within tissues, and the transport of carbon dioxide in the opposite direction Sensitivity : Detecting changes around it Growth : The ability to replace damaged or lost cells Reproduction: The ability to produce new organisms. Excretion : getting rid of waste Nutrition : taking food

What are four living and four nonliving things that you interact with or see everyday?

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