Answer:
variation:
definition. the act or process of varying
sentence. She studies subjects as varied as chemistry and sculpture.
synonym. difference
Bulb:
definition.a rounded underground storage organ present in some plants, notably those of the lily family, consisting of a short stem surrounded by fleshy scale leaves or leaf bases, lying dormant over winter.
sentence. the plant bulb needed some water
synonym. tuber
physiology:
definition.the branch of biology that deals with the normal functions of living organisms and their parts.
sentence.The physiology of respiration has been carefully studied by the doctor.
synonym . biological
Explanation: dont ask