*Question*
Q: What is the term for body parts that do not serve their original function? Choices: - abnormal structures - false structures - amenable structures - vestigial structures A:
**Answer**
vestigial structures

*Question*
Q: Maintaining a high metabolic rate takes a lot of what? Choices: - food - calories - fuel - energy A:
**Answer**
energy

*Question*
Q: What system protects the soft organs of the body? Choices: - nervous system - digestive system - Cardiovascular system - skeletal system A:
**Answer**
skeletal system

*Question*
Q: What type of plants were the first to evolve? Choices: - vascular - kilocalorie - cocklebur - nonvascular A:
**Answer**
nonvascular