MCQ
Vessels and Companion cells are characteristics of
- ✓Angiosperm
- BGymnosperm
- CPteridophyta
- DFern
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$(i)$ In chlorophyceae, the stored food material is starch and the major pigments are chlorophyll $-a$ and $d$.
$(ii)$ In phaeophyceae, laminarian is the stored food and major pigments are chlorophyll $-a$ and $b$.
$(iii)$ In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll $-a, d$ and phycoerythrin
$R$-Sensory receptors help in monitoring the environment