The structure that absorbs water and forms feces is the: MCQ with Answer and Explanation

Explanation:
Rickets is a childhood bone disorder caused by a severe deficiency of Vitamin D (Calciferol), or sometimes calcium or phosphate. Vitamin D is essential for the absorption of calcium and phosphorus from the gut. Its deficiency leads to soft, weak bones, resulting in skeletal deformities like bowed legs, delayed growth, and bone pain. Osteomalacia is the adult equivalent.

Explanation:
Budding is an asymmetric division where a new yeast cell forms as a small bud on the parent, eventually pinching off. Binary fission is symmetric splitting (bacteria), fragmentation is breaking into pieces, spore formation involves spores. Budding can occur in some hydra as well.

Explanation:
The Calvin cycle fixes CO₂ into glucose, which is the primary organic product of photosynthesis. Oxygen is a byproduct of water splitting.