« previous next »

Author Question: The first organ system that shows any sign of activity is the: respiratory system. digestive ... (Read 196 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.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Respiratory system Respiratory system
The Major Components of the Limbic System The Major Components of the Limbic System
Shope’s Model of Young Driver Crash Risks The model shows that many factors contribute to crash ris Shope’s Model of Young Driver Crash Risks The model shows that many factors contribute to crash ris
This engraving by William Russell Birch shows Congress Hall (left), which was occupied by Congress f This engraving by William Russell Birch shows Congress Hall (left), which was occupied by Congress f
Respiratory Question Respiratory Question
Hormone Activity Hormone Activity
Video: Mendel's pea plant, Pisum sativum experimental

For a complete list of videos, visit our video library