Question

1. select the meaning of the word using the lists in the lesson.

cardiogram
a photograph of the lungs
a brain scan
a written record of heart activity
a type of x - ray

Explanation:

To determine the meaning of "cardiogram", we analyze the word's roots: "cardio-" relates to the heart, and "-gram" refers to a record or written representation. The first option is about lungs (incorrect), the second about brain (incorrect), the fourth is a general x - ray (incorrect). The third option, "a written record of heart activity", matches the root meanings.

Answer:

The option "a written record of heart activity" (the third option among the given choices).