Draw a phylogenetic tree of the animal kingdom including the following phyla: Annelida, Arthropoda, Cnidaria, Chordata, Mollusca, Nematoda, Platyhelminthes, and Porifera. Indicate the key features that separate the branches.
Describe the general blood circulation pattern of a mammal such as a Human. Name as many vessels and structures as possible.
Using the concept of energy flow explain why we can feed more people from an acre of land if we grow wheat rather than beef.