One source of a musky odor in perfumes is civetone, a compound extracted from the scent gland of the civet cat. Identify the functional group circled. 
Definitions:
Nonrenewable Resources
Natural resources that cannot be replenished or replaced within a human lifespan, such as fossil fuels and minerals.
Squandered Resources
Resources that have been wasted or misused, often resulting in lost opportunities or damage.
Landscape Diversity
Variety of habitat elements within an ecosystem (e.g., plains, mountains, and rivers).
Species Diversity
A measure of biodiversity that refers to the variety of species within a particular region.
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