The correct option is C.
Economics as a course is divided into two major sub specialties, which are micro and macro economics. Micro economics has to do with the study of individual, households and businesses behaviors in decision making and uses of scarce resources. Macro economics on the other hand has to do with the study of how the whole economy behaves. Thus, macro economics is the study of how a nation's economy work and this usually involves the national government.
If you look at site 23 of the chromosomes, you can see whether the person is male of female:
Male: XY
Female: XX
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Answer:
A.it is a loose weave of fibers that functions as a packing material
Convergent evolution.
Similar looking organisms develop similar structures based on their niches, but it does not imply common ancestry.
