DP Biology (last assessment 2024)

Test builder »

Question 19N.3.HL.TZ0.16c

Select a Test
Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.16c
Level HL Paper 3 Time zone TZ0
Command term State Question number c Adapted from N/A
c.
[Maximum mark: 1]
19N.3.HL.TZ0.16c

By mid-2005, the Chinese government had established over 50 panda reserves. These protect more than 10 400 km2 and over 45 % of remaining panda habitat. There are also efforts to ensure the existence of natural corridors between panda populations.

[Source: Manyman/
https://commons.wikimedia.org/wiki/Ailuropoda_melanoleuca#/media/File:Giant_Panda_eating_Bamboo.JPG,
licensed under CC BY-SA 3.0]

(c)

State what a high value of Simpson’s reciprocal index of diversity suggests about an ecosystem.

[1]

Markscheme

a. stable/balanced ecosystem
OR
high species richness/evenness ✔

b. ecosystem not under stress ✔

c. ancient ecosystem
OR
absence of changes ✔

Accept final stage of succession, climax community.

Syllabus sections