Define Xenodiagnosis, Entomology, and Symbiosis.

You've sent the same image again, so here are the definitions for those terms once more:

20) Define the following terms:

• Xenodiagnosis: A diagnostic method used to detect the presence of parasites in an infected host by allowing a laboratory-bred, uninfected vector (e.g., an insect) to feed on the host. The vector is then examined for the presence of the parasite. This method is particularly useful for detecting parasites that are difficult to find directly in the host's blood or tissues, such as Trypanosoma cruzi.
• Entomology: The scientific study of insects. In medical parasitology, it focuses on insects that act as vectors for human diseases or are parasites themselves.
• Symbiosis: A close and long-term biological interaction between two different biological organisms. This interaction can be mutualistic (beneficial to both), commensalistic (beneficial to one, neutral to the other), or parasitic (beneficial to one, harmful to the other).