1 Nutrition – plants use light energy to make their food; animals eat plants or other animals for food. 2 Respiration – living things take in oxygen and use it to produce energy animals take in oxygen by breathing. 3 Excretion – living things give out materials they don’t need, e.g. in sweat or urine. 4 Reproduction – all living things can produce young like themselves. 5 Growth – living things get bigger as they grow older. 6 Sensation – living things can react to changes around them, like sounds, light, and so on. 7 Movement – most animals can move easily; plants can also move, e.g.they can grow towards light. 8 Transport – living things must move things in a liquid inside a cell or inside the organism 9 Secretion – some organisms release specialized substances such as oils,hormones, beeswax, enzymes 10 Metabolism – the sum of all energy processes to keep the organism alive 11 Regulation – the ability to maintain an internalinternal balance despite changes in the external environment
2007-06-12
02:21:01
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34 answers
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asked by
Cherie
6
in
Politics