(i) Which of the following fossil is invertebrate and which one is vertebrate?
(a) Dinosaur,
(b) Ammonite.
Answer:
Invertebrates are animals that do not have a backbone.
Vertebrates are animals that possess a backbone and an internal skeleton.
Therefore,
(a) Dinosaur - It is a vertebrate.
(b) Ammonite - It is an invertebrate.
