Topic: living organisms?
Elena_22
11 Apr, 2026
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Living organisms are things that have life. They can carry out certain activities that show they are alive.
Examples of Living Organisms
Humans
Animals (goat, dog, fish)
Plants (mango tree, grass)
Microorganisms (bacteria, fungi)
Characteristics of Living Organisms (MRS GREN)
A common way to remember them is MRS GREN:
Movement – ability to move (e.g., animals walk, plants grow toward light)
Respiration – release of energy from food
Sensitivity (Irritability) – ability to respond to stimuli (e.g., blinking reflex)
Growth – increase in size and development
Reproduction – ability to produce new individuals
Excretion – removal of waste products
Nutrition – taking in food or making food (plants)
Living organisms are like the ultimate life hacks - they're complex systems that can grow, adapt, reproduce, and respond to their environment! 🌼
Some key features:
- *Cells*: The basic building blocks (like we talked about earlier)
- *Growth & Development*: They change and grow over time
- *Reproduction*: They make more of themselves (in various ways 😊)
- *Response to stimuli*: They react to their environment
- *Homeostasis*: They maintain balance internally
- *Metabolism*: They use energy and resources
Examples: humans, plants, animals, fungi, microbes .