NEETZoologyStructural Organisation in Animals
Characteristics Organisms A. Performs functions like digestion, respiration, reproduction within one cell 1. Unicellular organisms B. Division of labor among different types of cells 2. Hydra C. Contains billions of cells 3. Human body D. Organ systems with specific proportions and patterns 4. Multicellular animals
Options
- AA - 1, B - 4, C - 3, D - 2
- BA - 1, B - 2, C - 3, D - 4
- CA - 2, B - 4, C - 1, D - 3
- DA - 4, B - 3, C - 2, D - 1
Correct answer
B. A - 1, B - 2, C - 3, D - 4
Step-by-step solution
Unicellular organisms perform all functions in one cell, multicellular animals exhibit division of labor, humans have billions of cells, and Hydra has specific patterns in cell organization.