1. Compare specific and nonspecific immune
responses.

What two fields of study provide the core information that is used to classify organisms?

Explain why phospholipid molecules form a bilayer. (3 marks)

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees