Organisms need to obtain food for energy and to maintain life.
2. Respiration (呼吸作用)
Organisms can break down food to
3. Movement (運動)
Plants usually move by growing.
4. Growth (生長)
Organisms increase in
5. Irritability (感應性)
Organisms can sense their internal and external environment and respond to it.
(1. detect environmental changes)
(2. give appropriate responses.)
6. Reproduction (生殖)
Organisms can produce new individuals called
7. Excretion (排泄)
Organisms can remove the waste produced from chemical reactions inside their bodies.