Answer:
The levels of nourishment in a food chain are called trophic levels.
Explanation:
The correct answer is letter B. The food molecules that cannot be digested need to be eliminated from the body. This can be done by taking in certain kinds of medicines that stimulate the digestive tract to pass out the food molecules that are indigestible.
Is is called chemotherapy
1-The person can have a bad background history with relationships 2-Somebody could be going through something traumatic and without one in a relationship sharing it could cause distress between them.