Analyze the concepts of Over-exploitation and Co-extinctions.
a. Over-exploitation is driven by human ‘need’ rather than ‘greed’.
b. Over-exploitation led to the extinction of the passenger pigeon and Steller’s sea cow.
c. Co-extinctions occur when species associated in an obligatory way with an extinct species also die out.
d. Co-extinction is exemplified by the loss of unique parasites when their host fish species becomes extinct.
e. Co-extinction is only applicable to host-parasite relationships.
