The ________ of the eye contains the pigmented cells that are responsible for eye color
A) lens
B) cornea
C) cones
D) iris
D
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Blood from the coronary circuit is collected on the posterior aspect of the heart in a blood vessel known as the __________.
a. circumflex branch b. interventricular vein c. coronary sinus d. great cardiac vein
Select the correct statement about immunodeficiency.
A) Severe combined immunodeficiency (SCID) disease is an acquired condition. B) The causative agent in acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins. C) Hodgkin's disease is a hereditary immunodeficiency found in children. D) The most common form of immunodeficiency is graft-versus-host (GVH) disease.
Which of the following statements best describes complete protein?
A) derived from meat and fish only B) meets all the minimum daily requirements for a healthy diet C) derived only from legumes and other plant material D) must meet all the body's amino acid requirements for maintenance and growth
Explain how the heart can be in the thoracic cavity but not the pleural cavity
A) The pleural cavity is only associated with the lungs. B) The thoracic cavity contains all organs protected by the ribs, sternum, and thoracic vertebrae. C) The mediastinum is a double-walled membrane surrounding the heart but not the lungs. D) The pericardial cavity encloses the heart as well as the lungs.