NEET BIOLOGY

Detailed explanation-1: -Commensalism is when two organisms share the same environment, where one benefits and the other is unharmed. Trees and birds have a commensalistic relationship; the birds benefit from having a place to build their nests, while the trees are unharmed and not impacted by the bird’s presence.

Detailed explanation-2: -Another form of commensalism occurs between small plants called epiphytes and the large tree branches on which they grow. Epiphytes depend on their hosts for structural support but do not derive nourishment from them or harm them in any way.

Detailed explanation-3: -One of the best-known examples of a commensal is the remora (family Echineidae) that rides attached to sharks and other fishes. Remoras have evolved on the top of their heads a flat oval sucking disk structure that adheres to the bodies of their hosts.

Detailed explanation-4: -Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.” Hermit crabs use the shells of dead snails for homes.

Detailed explanation-5: -Commensalism. A relationship in which one member benefits while the other is neither helped nor harmed is known as commensalism. For example, the remora fish can attach itself to a shark, whale, or large turtle and be carried from meal to meal, feeding on scraps scattered by its host.