Which of the following endocrine glands does not occur as a pair in the human body?

Define neuron. Name the parts of the neuron where:
$(i)$ information is acquired?
$(ii)$ impulse must be converted into a chemical signal for onward transmission?

Which part of the brain is responsible for the coordination of physical movements like dancing, cycling, and walking?

Which lobe of the cerebrum contains the centers for voluntary muscle movement?

What type of movement is shown by $Mimosa$ $pudica$ (touch-me-not) plant leaves when touched with a finger?

Which mechanism controls the timing and amount of hormone released?