Answer to Question 1
B
Explanation: A) The root spin means a thorn or spine.
B) Correct.
C) The combining form cerebell/o means little brain.
D) The prefix astro- means star-shaped.
Answer to Question 2
B
Explanation: A) Serum is the liquid that remains after blood clots.
B) Correct.
C) Lymph is not part of the blood.
D) Hemoglobin is found in the red blood cells.