4. A
srry thats the only thing i can answer
<span>The embryonic period is the most important phase of development for organ formation. The embryonic period in humans begins at the moment of fertilization and continues until the end of the tenth week of gestation. Rapid growth and differentiation occurs during this period, which produces varied cell types.</span>
Answer:
the creation or construction of a fictional character.
"he preferred to emphasize characterization and human conflict"
a description of the distinctive nature or features of someone or something.
"she rejected that characterization of her film"