i. Characteristics of ALL LIVING THINGS

– order (= levels of biological organization)
-- living things organized in units called CELLS


ii. Characteristics of ORGANISMS


• METABOLIC PROCESSES -- chemical reactions within an organism

– nutrient uptake, nutrient processing, waste elimination

• GENERATIVE PROCESSES -- increase the size & #'s of organism

– growth, reproduction

• RESPONSIVE PROCESSES -- react to external and internal changes

– irritability, individual adaptation,
• CONTROL PROCESSES -- make sure all metabolic activities function properly

– coordination proper sequence, regulation proper rate


iii. Characteristics of POPULATIONS

• RESPONSIVE PROCESSES -- react to external and internal changes