Which of the following is NOT true about the heart?

A) The heart is about the size of a closed fist.
B) The heart is located in the mediastinum.
C) The apex of the heart is directed superiorly and to the left.
D) Knowing the heart's position is important for effective CPR.

Plant cuticles, which reduce water loss, are primarily made of ____.

A) steroids
B) triglycerides
C) oils
D) waxes
E) fats

The olecranon process is found on the ________.

A) ulna
B) radius
C) scapula
D) humerus
E) clavicle

Which of the following is NOT a risk factor for chronic inflammation?

A) Prolonged infections
B) Cigarette smoking
C) Gum disease
D) Obesity
E) Vitamin D deficiency

Unions frequently use picketing to publicize a boycott.

What is the male sexual structure that produces sperm in plants?

A) Antheridium
B) Archegonium
C) Sporangium
D) Strobilus
E) Stoma