# Life Sciences Paper 1, November 2024, question 3.2.3

> A learner walks from a bright classroom into a dimly lit hall, and the... Marked mark by mark. Q3.2.3, Life Sciences Paper 1 November 2024, 2 marks.

Canonical: https://sharpkop.co.za/life-sciences/2024-nov-p1/q3-2-3/
Last updated: 2026-11-12

Subject: Life Sciences. Source: Based on Nov 2024 · Paper 1 · Q3.2.3. Marks: 2. Not yet checked by a teacher.

## Question 3.2.3 (2 marks)

A learner walks from a bright classroom into a dimly lit hall, and the pupils of her eyes change size automatically. Name the TWO types of effector muscle in the iris that bring about this pupillary mechanism.

## Practise it

[Answer this question](https://sharpkop.co.za/life-sciences/2024-nov-p1/q3-2-3/) and see it marked mark by mark, with the reason for every lost mark.

## Related

- [More human responses to the environment questions](https://sharpkop.co.za/life-sciences/human-responses/)
- [Life Sciences Paper 1, November 2024](https://sharpkop.co.za/life-sciences/2024-nov-p1/)
- [Grade 12 Life Sciences past papers](https://sharpkop.co.za/life-sciences/)

Questions are based on National Senior Certificate papers set by the Department of Basic Education. Sharpkop is not affiliated with or endorsed by the Department.