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| Pregunta | Respuesta |
| What is negative feedback? | system that maintains a relatively stable value for body variable such as blood glucose concentration, temperature & water concentration |
| What is nastic movement? | Nastic movement involves the movement of a plant which is independant of the direction of the stimuli. |
| Niche | The role of a species in a community |
| Mutualism | A symbiotic relationship in which two species benefit |
| Osmoreceptors | Nerve cells in the hypothalamus that detect changes in blood concentration and release hormones in response. |
| Interspecific competition | Competition for rescources involving members of different species. |
| Intraspecific competition | Competition for resources involving members of the same species |
| How do the large thin ears of an elephant help its survival in a desert environment? | The elephant's ears have a large SA:V so they can lose heat efficiently. |
| Define innate behaviour | Innate behaviour is genetically determined and is essentially the same in all members of the species. |
| Define imprinting | A form of irreversible learning occuring during the early stages of an animals life. |
| How do desert animals reduce their waterloss through urine? | They produce more concentrated urine, therefore their loop of Henles' are generally longer. |
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