The answer is A. The fertilized soil
Cell migration occurs extensively during both gastrulation and organogenesis.
Cell migration occurs extensively during gastrulation and organogenesis. During gastrulation three germ layers are formed. The Ectoderm, mesoderm and Endoderm are formed and these are positioned by the migration of epithelial and mesenchymal cells. During organogenesis organs are formed by the germ layers.
Cells migrate to form a specific organ. Organogenesis is the process happening right after the gastrulation. Cleavage is the process of division of cells without increasing its size. During this process cell migration doesn't happen. Hence all the other options except option D are incorrect.
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80% of its time, but it depends on the cell
Answer:
behavioral adaptation
Explanation:
Behavioral adaptations are things organisms do to survive. For example, bird calls and migration are behavioral adaptations.