Human Nutrition (the need for a digestive system)

Question 1

Name some animals which do not have a digestive system?

Answer 1

Sponges and tapeworms

Question 2

What do sponges and tapeworms have instead of a digestive system?

Answer 2

Each of their cells have a full range of digestive enzymes

Question 3

What does a digestive system allow animals to do?

Answer 3

It allows them to take in large pieces of food and break the food down using structures that need to be located in one place and not in every cell of the body e.g. teeth