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Movement
Definition: Movement refers to the ability of an organism to change its position or internal state.
Explanation: This includes both the movement of the whole organism (like an animal moving from one place to another) and the movement of parts of the organism (like plants growing towards light or the flow of blood within an animal's body).
Respiration
Definition: Respiration is the process by which organisms convert oxygen and glucose into energy.
Explanation: This process is vital as it provides the energy needed for other life processes. In animals and plants, this generally involves taking in oxygen and releasing carbon dioxide as a waste product.
Sensitivity
Definition: Sensitivity, or responsiveness, is the ability of an organism to detect and respond to changes in its environment.
Explanation: This characteristic allows organisms to react to stimuli such as light, temperature, sound, and touch. For example, plants may grow towards light, and animals may move away from danger.
Growth
Definition: Growth is the process by which organisms increase in size and mass.
Explanation: This involves the development of new cells and the enlargement of existing ones. Growth is an essential characteristic as it enables organisms to mature and eventually reproduce.
Reproduction
Definition: Reproduction is the process by which organisms produce new individuals or offspring.
Explanation: This can occur sexually (involving the fusion of gametes from two parents) or asexually (where a single organism produces offspring identical to itself). Reproduction ensures the continuation of a species.
Excretion
Definition: Excretion is the removal of waste products from an organism’s body.
Explanation: Metabolic processes generate waste products that can be toxic if they accumulate. Excretion ensures these waste products are expelled from the body, maintaining homeostasis.
Nutrition
Definition: Nutrition is the process by which organisms obtain and use food to support their life processes.
Explanation: Nutrition involves the intake of nutrients, which are used to produce energy, grow, and maintain the organism. Plants typically use photosynthesis to produce food, while animals consume other organisms.
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