biology help plz, 4th one ans
Answers
Answer:
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Answer:
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Explanation:
a. These water lilies in pond have air-filled leaf veins that let them rest on the surface of the water. Hence it floats.
b. Meristematic cells are continuously dividing cells so they have a prominent nucleus and dense cytoplasm.
c. Collenchyma cells are thin-walled with some areas of secondary thickening. They provide extra structural support and flexibility to plant.
d. The husk of a cocunut tree is hard to pull out because ,it is made up of scelerenchyma tissues which is ade of dead cells. Sclerenchyma gives rigidity and stiffness to the plant and also due to the presence of lignin on the walls of the cells we find it tough to pull the husk out.