DP Biology (last assessment 2024)
Question 17N.3.HL.TZ0.22c
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.3.HL.TZ0.22c |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
17N.3.HL.TZ0.22c
The micrograph shows a section of cardiac muscle.
[Source: Musculocardiaco by Goyitrina (https://commons.wikimedia.org/wiki/File:Musculocardiaco.jpg)]
(c)
State an early invention that led to improved knowledge of the heart.
[1]
Markscheme
stethoscope
OR
electrocardiograph/ECG
Allow other valid example.
