DP Biology (last assessment 2024)
Question 19M.2.SL.TZ1.a
Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.SL.TZ1.a |
Level | SL | Paper | 2 | Time zone | TZ1 |
Command term | State | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
19M.2.SL.TZ1.a
The table gives common names and binomial names for some mammals.
State one feature that characterizes these species as mammals.
[1]
Markscheme
fur/hair/mammary glands/feed young with milk/three inner-ear bones/lungs ventilated by diaphragm/lungs contain alveoli ✔
Examiners report
The most common correct answers were having fur/hair or providing milk. Warm-blood or live birth were often given but were not accepted as other classes of animals exhibit these characteristics.
