User interface language: English | Español

Date November 2019 Marks available 3 Reference code 19N.2.SL.TZ0.4
Level Standard level Paper Paper 2 Time zone TZ0 / no time zone
Command term Explain Question number 4 Adapted from N/A

Question

State the immediate consequence of a species producing more offspring than the environment can support.

[1]
a.

Explain the consequence of overpopulation on the survival and reproduction of better adapted individuals within a population.

[3]
b.

Markscheme

competition/lack of resources/death/exceeding carrying capacity ✔

Allow a description of it.
Do not allow “overpopulation” or “natural selection”.

a.

a. «better adapted» tend to survive more ✔

b. «better adapted» reproduce/produce more offspring ✔

c. pass on characteristics to their offspring «when they reproduce» ✔

d. their frequency increases «within the population» due to natural selection ✔

e. leading to evolution ✔

b.

Examiners report

[N/A]
a.
[N/A]
b.

Syllabus sections

Core » Topic 4: Ecology » 4.1 Species, communities and ecosystems
Show 85 related questions
Core » Topic 4: Ecology
Core

View options