*Question*
Q: What is the term for body parts that do not serve their original function? Read this paragraph and choose the correct option from the provided answers: Moles live underground where they do not need eyes to find their way around. This mole's eyes are covered by skin. Body parts that do not serve their original function are vestigial structures. 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? Read this paragraph and choose the correct option from the provided answers: Maintaining a high metabolic rate takes a lot of energy. The energy must come from food. Therefore, mammals need a nutritious and plentiful diet. The diets of mammals are diverse. Except for leaf litter and wood, almost any kind of organic matter may be eaten by mammals. Choices: - food - calories - fuel - energy A:
**Answer**
energy

*Question*
Q: What system protects the soft organs of the body? Read this paragraph and choose the correct option from the provided answers: The skeletal system protects the soft organs of the body. For example, the skull surrounds and protects the brain. The ribs protect the heart and lungs. Choices: - nervous system - digestive system - Cardiovascular system - skeletal system A:
**Answer**
skeletal system

*Question*
Q: What type of plants were the first to evolve? Read this paragraph and choose the correct option from the provided answers: Nonvascular plants were the first plants to evolve. Compared to other plants, their small size and lack of specialized structures, such as vascular tissue, stems, leaves, or flowers, explains why these plants evolved first. The first nonvascular plants to evolve were the liverworts. The hornworts evolved somewhat later, and mosses apparently evolved last. Of all the bryophytes, mosses are most similar to vascular plants. Presumably, they share the most recent common ancestor with vascular plants. Choices: - vascular - kilocalorie - cocklebur - nonvascular A:
**Answer**
nonvascular