D- oesophagus
The stomach, small intestines,liver secret digestive juice.
Answer: 1
Explanation: Oxygen moves in and carbon dioxide moves out of body.
Chordates are animals that possess certain characteristics including a notochord. Humans fall into this category along with many vertebrates such as whales, falcons etc; therefore, all of the answers apply.
Food, research, therapy, entertainment affection.
It is the c believe me I am trustworthy
