Which one of the following is not a parasitic adaptation?A. Development of adhesive organsB. Loss of digestive organsC. Loss of reproductive capacityD. Loss of unnecessary sense organs

The question asks about parasitic adaptations and which one is not typically seen in parasites. Let's analyze each option:

A. Development of adhesive organs: Parasites often have specialized structures like hooks, suckers, or other adhesive organs to attach to the host. This is a common parasitic adaptation that helps the parasite remain securely attached to its host.

B. Loss of digestive organs: Many parasites, particularly internal ones like tapeworms, do not need a full digestive system because they absorb nutrients directly from the host's body. This is a typical parasitic adaptation, as the parasite relies on the host for food.

C. Loss of reproductive capacity: This is not typically a parasitic adaptation. In fact, most parasites have a high reproductive capacity to ensure the survival of their species, as they often have a limited lifespan in the host and must produce many offspring. A parasite losing reproductive capacity would not be advantageous.

D. Loss of unnecessary sense organs: Parasites that live inside hosts or in environments where they do not need to detect external stimuli often lose unnecessary sense organs. For example, many endoparasites (like roundworms) lack well-developed sensory systems because they do not need to sense their surroundings.

The correct answer is C. Loss of reproductive capacity. This is not a typical parasitic adaptation, as parasites generally increase their reproductive capacity to ensure survival and transmission.