Both animals and humans need nutrients to gain energy.
False
True
............ It softens the food to be easy to swallow
teeth
Tongue
Saliva
........................ allows food to pass from pharynx to stomach.
Esophagus
Stomach
Small intestine
Food is completely digested ............ by the help of digestive juices secreted by liver and pancreas.
in the large intestine
in the stomach
in the small intestine
Dogs teeth are sharp because they .......................
eat meat
eat grass
eat fruits
The digestive system is responsible for digesting food and changing it from a simple form into complex one.
............a long tube which allows food to pass from pharynx to stomach.
............store fats in their humps to adapt to the desert environment.
Camels
Cows
Cats
.............has more than one stomach to digest grass easily.
Cow
Dog
Cat
The digestion process starts in the ...............
mouth.