2. Which of the following is an example of imbibition? a) Uptake of water by root hair.b) Exchange of gases by stomata.c) Swelling of seeds when placed ina beaker of water d)Opening of stomata 4. In the process of preserving food , salt is added to pickles. Identify the mechanism occurringin this process.a) Diffusionb) Osmosis c) Imbibitiond) Plasmolysis. 5. Which of the following is an example of simple reflex? a) Closing of eyes when strong light is flashed.b) A feeling of hunger in response to smell of food.c) Salivating in response to sour taste.d) Both A and B . 6.The neurons which carries impulse from the central nervous system to the muscle fibre a) Efferent neuron.b) Association neuron c)Afferent neurons.d) Unipolar neuron.7.Which bandof nervous tissue connects the two lobes of cerebral hemispheres of thebrain ?a) Ponsb) Hypothalamusc) Corpus callosumd) Thalamus.8. In the spinal cord, the posterior region tapers into a thin fibrous thread like structure calleda) Spinal nerves.b) Afferent root c) Filum terminale. d) Efferent root.​