Zoology Answers

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

Name the first true bird and give both its avian and theropod features

Amphibians were the early vertebrate communicators by sound on land. Discuss all aspects concerning the characteristics and functions of the advertisement call of Anura.

Describe how the gradient of a river can a influence fish distribution

Discuss the factors that threaten freshwater fishes.

Discuss the competition for food resources amongst Amphibia