Consider statements about animal husbandry: 1. Apiculture is the rearing of honeybees. 2. Sericulture is the rearing of silkworms. 3. Pisciculture is the rearing of poultry. Which are correct? MCQ with Answer and Explanation

Explanation:
Collenchyma is a simple permanent tissue characterized by cells with thickened corners due to the deposition of cellulose and pectin. It provides mechanical support, tensile strength, and flexibility to the growing parts of the plant (like stems and petioles), allowing them to bend without breaking. Parenchyma is for storage, and sclerenchyma provides rigid support.

Explanation:
Vaccination introduces antigens (weakened or killed pathogens) to stimulate the body's own immune system to produce antibodies and memory cells without causing disease. This is artificial active immunity. Natural active immunity is acquired by recovering from infection. Artificial passive immunity is direct administration of antibodies (e.g., antiserum). Natural passive immunity is transfer of maternal antibodies to fetus.

Explanation:
Lacrimal glands, located above the outer corner of each eye, produce tears that lubricate and protect the eye surface. Parotid and sublingual are salivary glands, ceruminous glands produce ear wax.