Dwarfism results due to

Name various plant hormones and describe their physiological effects on plant growth and development.

The sympathetic and parasympathetic nervous systems are parts of which system?

$(a)$ Name the hormone which is injected to a diabetic patient.
$(b)$ Why should we use iodised salt in our diet?
$(c)$ If iodine is insufficient in one's diet,what might be the deficiency disease and its symptoms?

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 hormone is produced by the pancreas?