BI308 Lecture Notes - Lecture 7: Common Redstart, Migration Period, Black Redstart

A professor begins a lecture on animal phylogeny by saying," We are all worms." Phylogenetically speaking, What did she mean?

Using a specific behaviour as an example, explain the difference between proximate causes and ultimate causes of behaviour.

Here is a quote by Rolf Hoekstra. Explain in detail why he makes such a claim.

“In a world without sex there would be no males and females. No flowers, no insects specialized in pollinating them, no extravagant colour and form like the peacock’s tail; and much animal behaviour would not exist.”

detail please