Barnacles are arthropods that cannot move on their own, so they hitch a ride on whales and filter out food from water as it passes by. The whales are unaffected by the barnacles.

What symbiotic relationship is this?

The symbiotic relationship between barnacles and whales described in the scenario is known as commensalism. In commensalism, one species (the barnacles) benefits from the relationship, while the other species (the whales) is neither harmed nor benefitted.

The symbiotic relationship described between barnacles and whales is called commensalism. In commensalism, one organism benefits (the barnacles) while the other organism (the whales) is neither harmed nor benefited.

The symbiotic relationship between barnacles and whales is known as commensalism. Commensalism is a type of symbiotic relationship where one organism benefits while the other is neither harmed nor benefited. In this case, the barnacles benefit as they have a reliable and mobile substrate (the whale) to attach themselves to, allowing them to access food particles in the water. The whales, on the other hand, are unaffected by the presence of barnacles and are generally not influenced in any way by their hitchhiking partners.