Refer to the figure.
About how old is this embryo, assuming normal development, based on the figure?
Definitions:
Homozygous
Having two identical alleles for a particular gene, resulting in a specific trait being expressed in an organism.
Heterozygotes
Individuals carrying two different alleles for a specific gene, one inherited from each parent.
Action Theory
Action Theory is a framework or set of theories within sociology and philosophy that seeks to understand how human actions are motivated and how they contribute to larger social phenomena.
Hydraulic Theory
A theory suggesting that the development and control of water systems played a crucial role in the emergence of early civilizations.
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