What is the movement of plant parts in response to temperature called?

Which of the following statements about the transmission of a nerve impulse is incorrect?

All information from our environment is detected by specialised tips of some nerve cells. Write the name given to such tips and also mention where they are located.

Which plant organ shows negative phototropism?

$(a)$ Draw the structure of a neuron and label the following on it:
Nucleus,Dendrite,Cell body,and Axon.
$(b)$ Name the part of the neuron:
$(i)$ Where information is acquired.
$(ii)$ Through which information travels as an electrical impulse.

Which mechanism controls the timing and amount of hormone released?