JAMB Exam > JAMB Videos > Biology for JAMB > Detailed Overview: Phylum - Chordata
Detailed Overview: Phylum - Chordata Video Lecture | Biology for JAMB
FAQs on Detailed Overview: Phylum - Chordata Video Lecture - Biology for JAMB
| 1. What is the phylum Chordata? |  |
Ans. The phylum Chordata is a major group of animals that includes vertebrates, which are animals with a backbone. It is characterized by the presence of a notochord, a hollow nerve cord, paired pharyngeal slits, and a post-anal tail during some stage of their development.
| 2. What are the main characteristics of the phylum Chordata? | |
Ans. The main characteristics of the phylum Chordata include the presence of a notochord, a hollow nerve cord, paired pharyngeal slits, and a post-anal tail. These features are present in at least some stage of their development and are key traits that distinguish them from other animal groups.
| 3. How many classes are there in the phylum Chordata? | |
Ans. The phylum Chordata is divided into three main classes: the class Agnatha (jawless fish), the class Chondrichthyes (cartilaginous fish), and the class Osteichthyes (bony fish). These classes represent different groups of vertebrates within the phylum Chordata.
| 4. What are some examples of animals belonging to the phylum Chordata? | |
Ans. Some examples of animals belonging to the phylum Chordata include mammals (such as humans, dogs, and dolphins), birds (such as eagles and sparrows), reptiles (such as snakes and turtles), amphibians (such as frogs and salamanders), and fish (such as salmon and goldfish).
| 5. How does the phylum Chordata play a significant role in the study of evolution? | |
Ans. The phylum Chordata is of great importance in the study of evolution as it includes vertebrates, which are considered to be one of the most advanced and complex groups of animals. By studying the different classes and species within the phylum Chordata, scientists can gain insights into the evolutionary history and development of various anatomical and physiological features found in vertebrates.
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