¿Qué es un pez?: recapitulando

The video tutorial explores the characteristics that define fish, including their physical traits and habitats in both freshwater and saltwater environments. It further delves into the different types of fish, such as jawless, cartilaginous, and bony fish, completing a comprehensive overview of fish research.

Can you explain the characteristics of jawless fish?

What is the significance of cartilaginous and bony fish in the study of ichthyology?