Maharashtra Board Class 12 Solutions for Biology Chapter 9 Control and Coordination – Download Free PDF with Solution
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FAQs on Maharashtra Board Class 12 Solutions for Biology Chapter 9 Control and Coordination - PDF
1. What is the full form of CNS?
CNS means the Central Nervous System. It comprises the spinal cord inside the vertebral column and the brain inside the skull.
2. What is CSF?
CSF or cerebrospinal fluid is the extracellular fluid present within the lobes of the brain and the spinal cord.
3. Which animals do not have a nervous system?
Porifera or the sponges do not have a nervous system. This is the only classification of animals that has developed any nervous system-related cells, tissues, or organs.
4. What is the nervous system of a hydra?
The nervous system of the hydra resembles a nerve net. There are no sense organs. These nerve nets are connected to the tentacles and skin of the hydra.
5. Why do animals need a nervous system?
The nervous system of an animal controls its voluntary and involuntary physiological functions.