Q1. Some birds follow moving swarms of army ants in the tropics. As the ants march along the forest floor hunting insects and small vertebrates, birds follow and pick off any insects or small vertebrates that fly or jump out of the way of the ants. What is the exact benefit relationship?

Q2. Recent evidence shows that the individual chromosomes occupy fairly defined territories within the nucleus. Given the structure and location of parts of the nucleus, which would be more probably involved in chromosome location?