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In the Last Quarter of the Nineteenth Century, Most Southern

question 20

Multiple Choice

In the last quarter of the nineteenth century, most southern communities lacked __________, so they relied on __________.


Definitions:

Invagination

A process in developmental biology where a part of the cell or tissue surface folds inward to form a pocket or pouch.

Organogenesis

The phase of embryonic development concerned with the formation of organs and organ systems.

Embryonic Development

The process by which an embryo forms and develops, involving cell division, growth, and differentiation.

Blastopore

The opening that forms during early embryonic development, which can develop into the mouth or the anus in animals.

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