MCQ
Non-chordates have
- ANotocord
- BDorsal tubular nerve chord
- CPharyngeal gills cleft
- ✓Absence of hepatic portal system
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Assertion $(A)$:
Osteoporosis is characterised by decreased bone mass and increased chances of fractures.
Reason $(R)$ :
Common cause of osteoporosis is increased levels of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:
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Type $I$ Type $II$ Type $III$