CHAPTER - 6 NCERT Questions Page 69 Ans1. A group of cells that are similar in structure and work together to do a particular function is called tissue. Ans2. Tissues provide structural strength, mechanical strength, show division of labour for better organisation. Page 74 Ans1. Parenchyma, Collenchyma, sclerenchyma. Ans2. Apical meristem is found at the tip of root or shoot of the plant. Ans3. Sclerenchyma tissue. Ans4. 1. Sieve tubes 2. Phloem fibres 3. Companion cells 4. Phloem parenchyma Page 78 Ans1. Muscular tissue, Nervous tissue. Combination of both of these tissues. Ans2. A neuron consists of a cell body with a nucleus and cytoplasm. Each neuron has a single long part called the axon and many small, short branched parts called dendrite. An individual nerve cell is called neuron, it may be up to a metre long. Ans3. Three features of cardiac muscles are :- 1. They contro
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