STD 11 - 15. Body fluids and criculations — NEET STD 11 Science — Question

Phenomenon of' industrial melanism' demonstrates.

Assertion : Organ transplantation patients are given immunosuppressive drugs.

Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.

During the course of development, cells in various regions of embryo become variable in morphology and eventually perform diverse functions. This process is known as

Which one of the following events is correctly matched with the time period in a normal menstrul cycle

Formula of vertebral column of man is

Which plant is used as a model system in the study of plant genetic

Normal diastolic pressure in young man is about

The process of release of urine is called micturition and the neural mechanisms causing it is called the micturition reflex.
(i) Urine formed by the nephrons is ultimately carried to the urinary bladder.
(ii) This signal is initiated by the stretching of the urinary bladder as it gets filled with urine.
(iii) In response, the stretch receptors on the walls of the bladder send signals to the CNS.
(iv) The CNS passes motor messages to initiate the contraction of smooth muscles of the bladder causing the release of urine.
Choose correct option which contain correct order of phenomena of micturation :-