Biology

The largest organ of the human body is the skin, which covers the entire body surface. Although the interstitium was proposed as a new organ in 2018, it is not considered the largest organ, but rather a fluid-filled space within connective tissues.

The heart pumps deoxygenated blood from the right ventricle to the lungs for oxygenation. This blood is low in oxygen and high in carbon dioxide before reaching the lungs.

Nili Ravi is a well-known breed of buffalo originating from the Sahiwal region of Pakistan, famous for its high milk production and adaptability.

Myosin, collagen, and actin are all types of proteins found in the body. Myosin and actin are involved in muscle contraction, while collagen is a structural protein in connective tissues.

Aorta, pulmonary, and ventricle are all terms related to the heart. The aorta is the main artery, pulmonary relates to the lungs but in the context of the heart (pulmonary artery/vein), and ventricle is a chamber of the heart. Therefore, they are names of parts or related to parts of the heart.

Weevils, Borers, and Beetles are all types of insects that commonly infest wood or plants, similar to Termites, which are also wood-destroying insects. Lice are parasites on animals, Moths are different insects, and Ringworms are fungal infections, so Termites are the closest related group.

Ovary, uterus, and cervix are all parts of the female reproductive system, making them reproductive organs. This is the correct analogy among the options provided.

Grafting, budding, and layering are all methods of asexual (vegetative) plant propagation. They do not involve seeds but rather use parts of existing plants to grow new ones. Grafting involves joining a scion to a rootstock; budding is a form of grafting using a single bud; layering induces roots on a stem while still attached to the parent plant. These methods are related to the field of plant propagation techniques rather than seeds, digging, or weeding. Therefore, the correct answer is 'Field' as it relates to the context of plant propagation methods, while 'Seed' is incorrect because these methods do not involve seed propagation.

Measles and Rabies are both infectious diseases caused by viruses, whereas Cancer is a non-infectious disease characterized by uncontrolled cell growth. Among the options, Hepatitis is also a viral infectious disease, making it the most similar to Measles and Rabies in terms of being infectious viral diseases. Pneumonia can be caused by bacteria or viruses, Diabetes is a metabolic disorder, and Tetanus is a bacterial infection but less similar in this context. Therefore, Hepatitis is the best match as it is a viral disease like Measles and Rabies.

The banyan tree is known for its prop roots, which are specialized roots that provide support. Similarly, a potato is known for its tuber, which is a swollen underground stem used for storage. Thus, the pair 'Potato : Tuber' is analogous to 'Banyan tree : Prop roots'.