1. What is the scientific term for a muscle that helps another muscle perform its action?

A. Agonist
B. Antagonist
C. Synergist
D. Fixator

Correct answer: C

Rationale: The correct answer is C: Synergist. A synergist muscle is a muscle that assists the prime mover (agonist) in performing its action by stabilizing joints or contributing extra force to the movement. Antagonist muscles oppose the action of the prime mover, while fixator muscles stabilize the origin of the prime mover to allow efficient movement. Understanding the roles of these muscles is essential in comprehending how various muscle groups work together to produce coordinated movements.

2. The two main divisions of the skeletal system are:

A. Upper and lower body bones
B. Axial and appendicular skeleton
C. Long and short bones
D. Compact and spongy bone

Correct answer: B

Rationale: The correct answer is B: Axial and appendicular skeleton. The skeletal system is divided into two main parts: the axial skeleton, which includes the skull, rib cage, and vertebral column, and the appendicular skeleton, which includes the bones of the arms, legs, shoulders, and hips. This division is based on the location and function of the bones in the body. The other options are incorrect as they do not represent the main divisions of the skeletal system. Understanding these divisions is important for studying the structure and function of the human skeletal system.

3. What is the formula to calculate kinetic energy?

A. Kinetic Energy = Mass Ã— Velocity
B. Kinetic Energy = Force Ã— Distance
C. Kinetic Energy = Power Ã— Time
D. Kinetic Energy = Potential Energy Ã· Time

Correct answer: a

Rationale: Kinetic energy is calculated using the formula KE = Â½ Ã— mass Ã— velocityÂ².

4. There are times when Katherine evaluates her staff as she makes her daily rounds. Which of

A. The staff member is observed in natural setting.
B. Incidental confrontation and collaboration is allowed.
C. The evaluation is focused on objective data systematically.
D. The evaluation may provide valid information for compilation of a formal report.

Correct answer: A

Rationale: The correct answer is A: 'The staff member is observed in a natural setting.' This option is the most appropriate because it aligns with the concept of naturalistic observation, where behavior is observed in its natural environment without interference or manipulation. In this scenario, Katherine is observing her staff during her daily rounds without any alterations to their behavior or environment. This allows for a more authentic and unbiased assessment of their performance. Options B, C, and D are not as relevant to the concept of naturalistic observation and do not accurately describe the situation presented in the question.

5. "Ironic" and "serious" are:

A. synonyms (have the same meaning)
B. antonyms (have opposite meanings)
C. homonyms (sound the same but have different meanings)
D. none of the above

Correct answer: B

Rationale: "Ironic" means the opposite of "serious."

6. Pseudostratified columnar epithelium

A. Skeletal muscle
B. Bony skeleton
C. External ears
D. Bloodstream

Correct answer: C

Rationale: The correct answer is C: External ears. Pseudostratified columnar epithelium is a type of epithelial tissue found in the respiratory tract, where it appears to be stratified but all cells are anchored to the basement membrane. The external ears are lined with pseudostratified columnar epithelium to help protect and support the structures of the ear canal. Skeletal muscle (A) is a type of muscle tissue, bony skeleton (B) refers to bones, and bloodstream (D) is a system for blood circulation, which are not related to pseudostratified columnar epithelium.