BASIC UNIT OF LIFE. EX: PLANT CELL

GROUPS OF CELLS EX: VASCULAR TISSUE

GROUP OF TISSUES EX: HEART

GROUP OF TISSUE. EX: DIGESTIVE SYSTEM

A COMPLETE LIVING THING EX: HUMAN

ALL MEMBERS OF ONE SPECIES IN AN AREA EX: GROUP OF KIDS

TWO OR MORE DIFFERENT SPECIES INTERACTING TOGETHER EX: BIRDS AND SQUIRRELS EATING NUTS TOGETHER IN A TREE

MEMBERS OF THE COMMUNITY PLUS THAT AFFECT THEM EX: FOREST

LARGE GEOGRAPHICAL AREA DETERMINED BY CLIMATE. FOREST

CRUST OF EARTH WHERE LIFE EXISTS (& ATMOSPHERE) EX: OUTER MOST ATMOSPHERE SURROUNDING THE EARTH