MCQ
Canal system in porifera is not concerned with
- ARespiration
- BNutrition
- ✓Sexual reproduction
- DNone of these
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$I$. water souble
$II$.water insoluble
$III$. some lipids have phosphorous
$IV$. found in only cell membrane
Choose the correct options
$I.$The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.
$II.$ Magnesium, calcium and chloride ions play prominent roles in the photolysis of water:
$III.$ In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.