AP BIOLOGY

Detailed explanation-1: -An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis. An organism would, therefore, be any animal, plant, fungus, protist, bacterium, or archaeon on earth. These organisms may be classified in various ways.

Detailed explanation-2: -There are seven characteristics of living things: movement, breathing or respiration, excretion, growth, sensitivity and reproduction. Some non-living things may show one or two of these characteristics but living things show all seven characteristics.

Detailed explanation-3: -Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.

Detailed explanation-4: -A living organism is primarily physico-chemical material that demonstrates a high degree of complexity, is capable of self-regulation, possesses a metabolism, and perpetuates itself through time.