Question 19N.3.HL.TZ0.7
| Date | November 2019 | Marks available | [Maximum mark: 6] | Reference code | 19N.3.HL.TZ0.7 |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | Describe, Explain, Outline | Question number | 7 | 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]
Courtship behaviour leads to mate selection. Describe innate behaviour.
[1]
a. innate behavior is independent of environment ✔
b. innate behaviour is controlled by genes/inherited ✔
c. innate behaviour is present at birth OWTTE
OR
doesn't change through time/experience ✔
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 ✔
Outline operant conditioning, giving an example.
[2]
a. when an animal learns to associate a reward with a certain kind of behaviour OWTTE
OR
trial and error learning
OR
positive reinforcement
OR
associative learning ✔
b. example: animal training ✔