Question

Fill in the blanks.

1. The skeletal framework of Porifera is ……. 

2. Ctenidia are respiratory organs in ……… 

3. Skates are …… fishes. 

4. The larvae of an amphibian is …….. 

5. ….. are jawless vertebrates. 

6. ……… is the unique characteristic feature of mammal. 

7. Spiny anteater is an example for ………mammal.

Answer 1

1. spicules

2. Octopus 

3. Cartilaginous 

4. tadpole 

5. Cyclostomes 

6. Placenta 

7. egg-laying