DP Biology (first assessment 2025)

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Question 22N.1A.HL.TZ0.36

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1A.HL.TZ0.36
Level HL Paper 1A Time zone TZ0
Command term Question number 36 Adapted from N/A
36.
[Maximum mark: 1]
22N.1A.HL.TZ0.36

Two kinds of wolf spider rub specialized body parts together in order to produce distinct sounds to attract females. Females of both groups will only allow a male of the same kind to mate with them. It has been found through experimentation, however, that offspring can be produced from crossings between the two groups. What can be hypothesized?

I.   The groups are reproductively isolated.

II.  They could be the same species.

III. This is an example of behavioural isolation.

A.  I only

B.  II only

C.  I and II only

D.  I, II and III

[1]

Markscheme

D

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