Question

the baby needs care and protection outside of the mother’s uterus. the hands and legs begin to form. the heartbeat can first be heard with a stethoscope. the person begins learning language and motor skills. fetus infant embryo childhood

Explanation:

• Infant: After birth, the baby (infant) is outside the uterus and needs care/protection.
• Embryo: During the embryonic stage, the basic body structures like hands and legs start to form.
• Fetus: In the fetal stage, the heartbeat becomes detectable with a stethoscope as development progresses.
• Childhood: Childhood is the stage where a person actively learns language and motor skills as they grow and develop.

Answer:

1. "The baby needs care and protection outside of the mother’s uterus." - infant
2. "The hands and legs begin to form." - embryo
3. "The heartbeat can first be heard with a stethoscope." - fetus
4. "The person begins learning language and motor skills." - childhood