Question 18M.2.HL.TZ1.1d
| Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.2.HL.TZ1.1d |
| Level | HL | Paper | 2 | Time zone | TZ1 |
| Command term | Distinguish | Question number | d | Adapted from | N/A |
Scientists have hypothesised that bats affected by WNS could be more likely than unaffected bats to emerge from hibernation during the winter. Bats occasionally undergo short interruptions in hibernation accompanied by an increase in body temperature. Scientists used sensors attached to M. lucifugus to monitor the temperature of a group infected with the fungus over the winter months. A second uninfected group was also monitored. The graphs show the results for two typical individuals.
Distinguish between the patterns of hibernation of the uninfected and infected bats.
[1]
a. more (frequent) interruptions/emergences from hibernation/shorter periods of hibernation/more spikes in temperature (indicating emergence) in infected bats
b. more fluctuation in (body) temperature (during hibernation) in infected (than uninfected bats)
c. emergences/interruptions become more frequent during the hibernation period in infected bats versus (about) about the same frequency in uninfected
