1825192
Beschreibung
Mindmap von beccadavies19, aktualisiert more than 1 year ago
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Erstellt von beccadavies19
vor fast 10 Jahre
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Communication Systems
- External Environment
- Can be air, water or soil. It can change and put the organism under stress
- Slow changes e.g. Season change/global warming
- Fast change e.g. Day to night/sunshine to darkness
- Slow changes e.g. Season change/global warming
- Can be air, water or soil. It can change and put the organism under stress
- Detecting changes
- High blood sugar levels after a meal
- Body releases insulin - hormonal
- Body releases insulin - hormonal
- Smelling delicious food
- Mouth waters - nervous
- Mouth waters - nervous
- Torch shone in eye
- Pupils contract - nervous
- Pupils contract - nervous
- Sudden drop in external temperature
- Shiver - nervous
- Shiver - nervous
- High blood sugar levels after a meal
- Internal Environment
- Cells...
- ...do metabolic reactions, use up substrates and produce products e.g. CO2
- CO2 needs excreting
- This means the removal of waste to prevent accumulation in the blood
- CO2 needs excreting as it can build up in tissue fluid ad disrupt enzyme action of cells, and change pH levels
- CO2 needs excreting as it can build up in tissue fluid ad disrupt enzyme action of cells, and change pH levels
- This means the removal of waste to prevent accumulation in the blood
- CO2 needs excreting
- ...are bathed in tissue fluid which is made from the blood
- ...do metabolic reactions, use up substrates and produce products e.g. CO2
- Cells...
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