DP Biology (last assessment 2024)

Test builder »

Question 18M.2.HL.TZ1.h

Select a Test
Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.HL.TZ1.h
Level HL Paper 2 Time zone TZ1
Command term Suggest Question number h Adapted from N/A
h.
[Maximum mark: 1]
18M.2.HL.TZ1.h

The graph shows data from a small group of infected bats that died during hibernation. The average time interval between hibernation emergence periods and the date of death were recorded using temperature sensors for these bats.

Suggest one reason, other than the interval between hibernation emergence periods, for some infected bats surviving longer than others.

[1]

Markscheme

a. differences in body mass
OR
differences in reserves/stores of food/energy/fat 

b. bats may be predated during a flight / chance events might affect the date of death 

c. more effective/stronger immune system/immunity (in some bats) 

d. more resistance to cold (in some bats) 

e. larger bats lose heat less rapidly 

f. infected at a different/later date

Syllabus sections