The first organ system that shows any sign of activity is the: respiratory system. digestive ...

Author Question: The first organ system that shows any sign of activity is the: respiratory system. digestive ... (Read 200 times)

skymedlock

Hero Member
Posts: 561

on: Jun 22, 2018

The first organ system that shows any sign of activity is the:

respiratory system.
digestive system.
nervous system.
cardiovascular system.

Question 2

The neural tube will become the

reproductive organs.
intestinal tract.
brain and spinal cord.
backbone, legs, and arms.

frogdreck123456

Sr. Member
Posts: 329

Reply #1 on: Jun 22, 2018

Answer to Question 1

cardiovascular system.

Answer to Question 2

brain and spinal cord.

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