| Question |
 |
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| Answer |
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| why is excretion necessary? |
if metabolic wastes (co2 and urea) remain in the body their concentration increases to the point of toxicity |
| how to vacuoles assist the plants survival |
it removes wastes form metabollic processes of other organelles so does not interfere. |
| How is oxygen/CO2 removed from the plant |
diffuses throught the cholorplasts in to the intracellular space in the leaf then through stomata out same with co2 at night. |
| How might an animal lose excess water |
urine sweat lung evaporation and skin evap |
| how might a plant lose excess water |
transpiration off evap on leaves |
| Deamination |
the liver breaking amino acids down turning it into ammonia urea and carbs which are then used for energy |
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