MCQ
The most distinctive character of sponge is
- ✓Presence of choanocytes
- BUnicellular
- CMarine
- DAsexual reproduction
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$I$.It is non-iodised
$II.$ It is secreted by parafollicular cells
$III.$ It regulates the calcium level in blood
$IV.$ It also called as $TCT$ (Thyrocalcitonin)
$V.$ It is hyperglycemic agent
Select the option containing correct statements from the above given statements
Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.