Biology Answers

Why is knowledge of the Sarcopterygii lineage so important in understanding the evolution of
terrestrial vertebrates?

Discuss the pattern of blood flow through the circulatory system of a lungfish and why is important to understand this particular pattern of circulation?

Discuss the ecological and behavioural factors that prohibit reptiles from migrating vast distances

Discuss all the skeletal modifications found that make flight possible for birds.

What is the heart structure, circulation pattern, nitrogenous waste, excretion and thermal control of Amphibia, Reptilia, Aves and Mammalia.

Name the three clades that represent Lissamphibia. List and describe the unique traits that support the monophyly of Lissamphibia

Name and motivate the most important evolutionary step which distinguishes amphibians from reptiles

Discuss the anti-­‐predatory adaptations of Amphibia

Why are bony fishes no longer grouped together in a single class “Osteichthyes”? and Why do hagfishes constitute a separate infraphylum?

Discuss the distribution of endemic species from the family Cyprinidae present in the Orange River