introduction

Question 1

Biochemistry

Answer 1

science of life processes

Question 2

common characteristics shared by living systems

Answer 2

• cellular organisation
• ordered complexity
• sensitivity
• growth, development, reproduction
• energy utilisation
• homeostasis
• evolutionary adaptations

Question 3

cellular level

Answer 3

atoms
molecules
organelles
cells

Question 4

organism level

Answer 4

tissues (group of similar cells)
organs
organ system

Question 5

populational level

Answer 5

population (same living in the same place)
species (similar)
biological community (different)

Question 6

ecosystem level

Answer 6

populations and their environments

Question 7

biosphere

Answer 7

entire planet