For the second one it’s B or C, I dunno if phototropism is a real word cuz all the rest are vital.
Answer: A and D
Explanation: Sclerenchyma cells are thick cells that provide support in plants. They have thick cell walls lined with lignin. They possess extremely thick cell walls which gives rigidity and support to the plant body. Their main and primary function is to give support and structure to the plant.
Sclerenchyma cells don't have protoplast that mean the cells are dead at maturity.
Advantage - having natural automatic antibodies and defences to defend the body from any unknown organisms invading or intruding.
disadvantage -<span>The bodies of mammals are always maintaining the temperature through processes which is why constant food consumption is necessary.</span>
