Answer the following question given this paragraph: An insect's abdomen contains most of the internal organs. Like other arthropods, insects have a complete digestive system. They also have an open circulatory system and central nervous system. Like other terrestrial arthropods, they have trachea for breathing air and Malphigian tubules for excretion. Q: Where are more of an insect's internal organs kept? Choices: - the head - the thorax - the chest cavity - the abdomen A:
The answer to this question is:
the abdomen