1. the sponges are multicellular
2. the cells are loosely arranged
3. the cells are so small that they can be squeezed through cloth
4. the sponges are non-living.
the cells are loosely arranged
1. Not necessary for plants
2. Necessary for plants
3. Avoidable
4. A necessary evil
A necessary evil
1. Protozoans
2. Flaellates
3. Choanoflagellates
4. Ciliates
Choanoflagellates
1. Pure water or hypotonic solution
2. Hypertonic solution
3. Isotonic solution
4. Saturated solution
Pure water or hypotonic solution
1. atcheocytes.
2. porocytes
3. pinacocytes
4. choanocytes
pinacocytes
1. Facilitate transpiration
2. Stop transpiration
3. Stop minimize excessive transpiration
4. Store water
Stop minimize excessive transpiration
1. Coelenterata
2. Porifera
3. Acnidaria
4. Platyhelminthes.
Platyhelminthes.
1. sponging fibres
2. mesogloea
3. spicules
4. nematoblasts
sponging fibres
1. Epidermal cells of the leaves
2. Guard cells of the stomata
3. Mesophyll tissue of the leaves
4. Cuicle
Guard cells of the stomata
1. Planarian
2. Rotifer
3. Fluke
4. Sea Anemone.
Sea Anemone.