How does the digestive system interact with the circulatory system?

A.
Oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.
B.
Nutrients and gases are absorbed by organs in the circulatory system. Then, they are transported to all parts of the body by organs in the digestive system.
C.
Nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system.
D.
Messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )