What is the gap between two neurons called?

The response of plants to stimuli is limited because $...$

In figures $(a)$,$(b)$ and $(c)$,which appears more accurate and why?

Which of the following statements are true about the brain?
$(i)$ The main thinking part of the brain is the hindbrain.
$(ii)$ Centres of hearing,smell,memory,sight,etc.,are located in the forebrain.
$(iii)$ Involuntary actions like salivation,vomiting,and blood pressure are controlled by the medulla in the hindbrain.
$(iv)$ The cerebellum does not control posture and balance of the body.

Give the function$(s)$ of the following plant hormones:
$(i)$ Auxins $(ii)$ Gibberellins $(iii)$ Cytokinins $(iv)$ Abscisic acid $(v)$ Ethylene

Which hormone acts as a growth inhibitor in plants?