Explanation:

- Morphology: This is the study of the form and structure of organisms, which encompasses plants, animals, and microorganisms. It's not specific to fungi.

- Kalology: This isn't a recognized branch of biology. It actually relates to the study of beauty and aesthetics.

- Mycology: This is the correct answer. It's the branch of biology dedicated to the study of fungi, including their genetic and biochemical properties, as well as their use in medicine and food.

- Virology: This is the study of viruses and virus-like agents, including their taxonomy, disease-producing properties, and how they interact with host organisms.