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What is the main purpose of excretion in living organisms?
Apuntes
``` NOTAS BIOLOGY LIVING THINGS • Subtopic: Characteristics of Living Things 1. Movement - Definition: The ability of an organism to change position or move parts of itself. - Types: - Internal: Movement inside the body. Example: movement of blood. - External: Movement of the whole organism. Example: walking/swimming. 2. Growth - Definition: Permanent increase in size and mass of an organism due to the increase in cell number or size. - Metamorphosis: Process where an organism changes form as it develops. Example: caterpillar. 3. Sensitivity - Definition: The ability to detect and respond to stimuli (changes) in the environment. - Examples of stimuli: light, temperature, touch, sound. Example: cold → shiver to generate heat. - Homeostasis: Maintaining a stable internal environment (balance in the body). 4. Nutrition - Definition: Taking in materials and nutrients needed for energy, growth, and repair. - Types: - Autotrophs (producers): Make their own food through photosynthesis. Example: plants producing glucose. - Heterotrophs (consumers): Obtain food from other organisms. Example: animals eating plants or other animals. - Im...
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