Question

Study the diagram below and answer the questions that follow.

1. What is the phylum X?  
2.  Name the classes A, B and C. 
3. State two distinguishing characteristics of mammalian class. 

Answer 1

1. Chordata.
2.  
   1. A – Pisces
   2. B – Amphibian
   3. C – Reptilia.
3.  
   1. Have mammary glands.
   2. Body covered with fur/hair.
   3. Have pinnae.