The alimentary canal consists of the mouth, pharynx, esophagus, stomach, small intestine, and large intestine.
a. true
b. false

The best answer is A.

The alimentary canal also called the digestive tract is the pathway by which food enters the body and solid wastes are expelled. The alimentary canal includes the mouth, pharynx esophagus, stomach, small intestine, large intestine and anus.

Food is converted into essential nutrients that are absorbed into the body and eliminates unused waste material. It is essential to good health because if the digestive system shuts down, the body cannot be nourished or rid itself of waste.

the answer is

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.