MCQ
It is lobefins.
- APalycosaurus
- BTherapsids
- CThreodonts
- ✓Coelacanth
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A drug used for ...$A$... patients is obtained from a species of the organism ...$B$.... It helps in clearing blood clots inside the blood vessels.
The one correct option for the two blanks are
$(i)$ is released by sympathetic fibers
$(ii)$ is released by parasympathetic fibers
$(iii)$ increases the heart rate
$(iv)$ decreases blood pressure.
Which of the above statements are correct ?