IB Biology SL D3.2.14 Continuous Variation Questions
Interpret a continuous human-trait distribution and identify its modal range and many intermediate phenotypes in IB Biology SL D3.2.14.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Read a continuous human-trait distribution and identify the modal range, recognizing that many intermediate phenotypes can occur.
IB Biology SL D3.2.14 Continuous Variation Questions question 1
Both the genome and the environment of an organism affect its growth and development. Variation between individuals of a species can be continuous or discrete (discontinuous). Mitosis produces identical cells for growth and meiosis allows for variation.
The micrographs show onion and whitefish cells in mitosis.
The National Health and Nutrition Examination Survey in the USA measured heights of individuals aged 21-79. Height is an example of continuous variation.
State the range of heights that is the mode.
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