NEETZoologyStructural Organisation in Animals
Types of Organisms Characteristics A. Unicellular Organisms 1. Digestion, respiration, and reproduction performed by a single cell B. Multicellular Animals 2. Composed of billions of cells C. Hydra 3. Made of different types of cells with thousands in each type D. Human Body 4. Basic functions carried out by different groups of cells
Options
- AA - 1, B - 4, C - 3, D - 2
- BA - 1, B - 2, C - 3, D - 4
- CA - 1, B - 2, C - 3, D - 4
- DA - 3, B - 4, C - 2, D - 1
Correct answer
A. A - 1, B - 4, C - 3, D - 2
Step-by-step solution
Unicellular organisms perform all functions in a single cell. Multicellular animals have basic functions carried out by different cell groups. Hydra has different cell types, and the human body has billions of cells.