Question

during the eighth week __________. a all organ systems have appeared b ossification begins c eyes, ears, and nose are noticeable d mother begins to feel movement

Explanation:

• Option A: By the eighth week of embryonic development, all major organ systems have formed.
• Option B: Ossification (bone formation) begins later in development, not at the eighth week.
• Option C: Eyes, ears, and nose start to develop but are not highly noticeable in a distinct form at eight - week.
• Option D: A mother typically begins to feel fetal movement (quickening) around 16 - 20 weeks of pregnancy.

Answer:

A. all organ systems have appeared