Biology (2025)

Group 4 subject
Assessments from 2025 to Present

Description

Biology is the study of life. The vast diversity of species makes biology both an endless source of fascination and a considerable challenge. Biologists attempt to understand the living world at all levels from the micro to the macro using many different approaches and techniques. Biology is still a young science and great progress is expected in the 21st century. This progress is important at a time of growing pressure on the human population and the environment. By studying biology in the DP, students should become aware of how scientists work and communicate with each other. While the scientific method may take on a wide variety of forms, it is the emphasis on a practical approach through experimental work that characterizes the sciences. Teachers provide students with opportunities to design investigations, collect data, develop manipulative skills, analyze results, collaborate with peers, and evaluate and communicate their findings.

Past Syllabuses

Grade Calculator

Paper 1

Weight: 36%

/ 55

Paper 2

Weight: 44%

/ 50

Individual Investigation

Weight: 20%

/ 24

Predicted Grade
50
Predicted Mark
Using the undefined grade boundary
0
Educators Predicted Grades Excel Tool

Graphs

Predicted Mark Probability Distribution

Historical Grade Boundaries

Historical Grade Boundaries Graph for
SL Biology
SL Biology
Boundary* Markband
1234567
M19 TZ1 0173143546678
M19 TZ2 0142435485972
N19 TZ0 0152742556679
N20 TZ0 0152639516375
M21 TZ1 0122132446074
M21 TZ2 0122231445975
M22 TZ1 0142434496479
M22 TZ2 0132233486176
N22 TZ0 0152639516578
M23 TZ1 0152639516476
M23 TZ2 0152638506274
N23 TZ1 0152739526578
N23 TZ2 0152741546679
M24 TZ1 0152740526476
M24 TZ2 0152538506375
HL Biology
Boundary* Markband
1234567
M19 TZ1 0172941546779
M19 TZ2 0162738526477
N19 TZ0 0162842556881
N20 TZ0 0162840546781
M21 TZ1 0131929415975
M21 TZ2 0162434475976
M22 TZ1 0142129435771
M22 TZ2 0152333476074
N22 TZ0 0152332506480
M23 TZ1 0152638516477
M23 TZ2 0152536506477
N23 TZ1 0152536506377
N23 TZ2 0152536506377
M24 TZ1 0142536506276
M24 TZ2 0152535506276

*Timezone 0 (Worldwide)

*Timezone 1 (North America, South America)

*Timezone 2 (Europe, Africa, Asia, Australia, Oceania)

NOTE: N20, M21, N21, M22, N22 grade boundaries were artificially low due to COVID. There were also

NOTE: Beware of using outdated grade boundaries. Many subjects have since updated their syllabus.