The animal that has a four-chambered stomach for rumination is: MCQ with Answer and Explanation

Explanation:
The skin consists of the outer epidermis and the inner dermis. The epidermis contains melanocytes that produce melanin, a pigment that absorbs harmful ultraviolet radiation, protecting deeper tissues. Sweat glands in the dermis secrete sweat onto the skin surface; its evaporation removes heat, playing a crucial role in body thermoregulation. All statements are correct.

Explanation:
Biotin (vitamin B₇) is a water-soluble B vitamin that functions as a coenzyme for carboxylase enzymes, important in fatty acid synthesis and gluconeogenesis. Vitamin B₁ acts in decarboxylation, A and K are fat-soluble. Biotin is widely distributed in foods and also synthesized by gut bacteria.

Explanation:
Drosera (sundew) is an insectivorous plant that captures insects with sticky tentacles on leaves to supplement nitrogen in nutrient-poor soils. Cuscuta is a parasitic plant, Monotropa is saprophytic, Rhizobium is a bacterium, not a plant. Insectivorous plants include pitcher plant (Nepenthes), Venus flytrap, and bladderwort. They are autotrophic but supplement nitrogen.