The type of inflorescence in which flowers are borne on a flattened receptacle, as in sunflower, is: MCQ with Answer and Explanation

Explanation:
Fucoxanthin is a carotenoid that masks the green chlorophyll in brown algae (Phaeophyceae). Phycoerythrin is red, phycocyanin blue, chlorophyll b green.

Explanation:
Pellagra, with symptoms of dermatitis, diarrhea, and dementia, is due to niacin (B₃) deficiency. Beriberi is B₁ deficiency, anemia can be iron/B₁₂/folate, goiter iodine.

Explanation:
Fisheries, or aquaculture, involves the breeding, rearing, and harvesting of fish, shellfish, algae, and other aquatic organisms in various water environments for food, commercial, and recreational purposes. It includes both inland fisheries (freshwater like ponds, rivers) and marine fisheries (saltwater like oceans). It is a major source of protein and livelihood globally.