QUESTION 1
a) What are melanosomes and why was their discovery significant so significant for our
understanding of dinosaur biology? (10 marks)
b) The evolution of mammals was directly affected by two mass extinction events. Discuss this
statement (10 or more marks).
c) Birds are the only dinosaurs that survived the end of the Cretaceous extinction event. Discuss.
(10 mark)
QUESTION 2
a) Discuss the fish-like and tetrapod-like features of the Batrachomorphs (early tetrapods). (10 or
more marks)
B) Explain some of the reasons why animals moved onto land from aquatic environments (10)
c) Fossilised nests of dinosaur eggs provide a host of information about dinosaur reproductive
behaviour. Explain.
d) Explain why birds and crocodiles represent the Extant Phylogenetic Bracket for dinosaurs. (5
marks).
QUESTION 1 a What are melanosomes and why was their discove.pdf
1. QUESTION 1
a) What are melanosomes and why was their discovery significant so significant for our
understanding of dinosaur biology? (10 marks)
b) The evolution of mammals was directly affected by two mass extinction events. Discuss this
statement (10 or more marks).
c) Birds are the only dinosaurs that survived the end of the Cretaceous extinction event. Discuss.
(10 mark)
QUESTION 2
a) Discuss the fish-like and tetrapod-like features of the Batrachomorphs (early tetrapods). (10 or
more marks)
B) Explain some of the reasons why animals moved onto land from aquatic environments (10)
c) Fossilised nests of dinosaur eggs provide a host of information about dinosaur reproductive
behaviour. Explain.
d) Explain why birds and crocodiles represent the Extant Phylogenetic Bracket for dinosaurs. (5
marks)
