Description
ZOL2601 Assignment 4 Semester 1 Memo | Due 13 May 2025. All questions fully answered. Answer all five questions (total of 50 marks)
Question 1 [10]
Explain briefly in your own words how measuring CO2 production can be used to
estimate the metabolic rate of animals. Discuss at least two approaches in this
context.
Question 2 [6]
Provide a short overview and explanation of organisms that store energy in
the form of glycogen. Also briefly explain why migrating birds do not store
energy as glycogen.
Question 3 [10]
Use diagrams and equations to distinguish between the three general types
of allometric relationships.
Question 4 [14]
The table below provides respiration rates at various temperatures for two different
species.
Species A Species B
Temperature
(°C)
O2
consumed
(ml kg-1 hr-1)
O2
consumed
(ml kg-1 hr-1)
23 32 32
31 32 55
4.1. Calculate the Q10 values for oxygen consumption rates for each of the two
species. Show all your calculations. (8)
4.2. Based on the Q10 values, discuss which of the two species is likely to be
threatened more by extreme heat events in its environment. Include in your answer
a clear explanation of what the Q10 values mean and speculate on the types of
organisms that may be represented by A and B (6)
Question 5 [10]
Draw an acclimation graph to illustrate the thermal tolerance range of a hypothetical
species for which the following data is available:
Acclimation
temperature (°C)
Lower lethal
temperature (°C)
Upper lethal
temperature (°C)
15 5 40
20 5 42
25 5 45
30 8 45
35 10 45
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