Problem 1
Explain why molecular (DNA) markers have improved the ability of ecologists to study degrees of differentiation within and between species.
Problem 7
Discuss the following propositions: 'Most herbivores are not really herbivores but consumers of the byproducts of the mutualists living in their gut' and 'Most gut parasites are not really parasites but competitors with their hosts for food that the host has captured'.
Problem 8
Compare the roles of fruits and nectar in the interactions between plants and the animals that visit them.
Problem 9
What are mycorrhizas and what is their significance?
Problem 10
Leguminous plants are a perfect example of a mutualistic association that can only be understood in the context of the ecological community within which it normally exists. Discuss.
