Chapter 1🔬 Characteristics of Living Organisms
🔬 Characteristics of Living Organisms All organisms show seven characteristics of life: Movement – Ability to change position or place. Respiration – Chemical reactions that break down nutrients to release energy. Sensitivity – Ability to detect and respond to changes in the environment. Growth – A permanent increase in size and dry mass (mass after removing all water). Reproduction – The process of producing offspring. Excretion – Removal of waste products. Nutrition – Taking in materials for energy and growth. 🧬 Key Biological Terms Metabolism: All chemical reactions in living organisms. Dry mass: The mass of an organism after water is removed. Organic substances: Molecules containing carbon, made by living organisms. Chlorophyll: Green pigment that absorbs light energy for photosynthesis. Cellulose: A carbohydrate forming plant cell walls. 🧑🔬 Classification & Kingdoms 🔑 Key Concepts Kingdom: Major groups in which organisms are classified. Common ancestor: A species from th...