Question 19N.3.HL.TZ0.b
| Date | November 2019 | Marks available | [Maximum mark: 3] | Reference code | 19N.3.HL.TZ0.b |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | Explain | Question number | b | Adapted from | N/A |
Many animals have a unique technique for courting their mate. The male peacocks (Pavo cristatus) spread their brightly-coloured tails to impress the females (peahens).
[Source: cocoparisienne/Pixabay]
Explain the implications of courtship behaviour in natural selection.
[3]
a. «courtship behaviour» is inherited/innate
OR
variations exist ✔ OWTTE
b. fittest animals have the best courtship behaviour ✔
c. «courtship behaviour» allows members of a species to identify each other
OR
«courtship behaviour» results in mate selection ✔ OWTTE
d. «courtship behaviour» increases chances of mating/reproductive success ✔
e. «courtship behaviour» also make organisms more vulnerable to predation ✔
f. «allows» best courtship to be passed on to the next generation/offspring ✔
