Chapter 52
Biology: A Global Approach · 4 exercises
Problem 2
Total flight height can be considered to be a measure of the total energy required to break open a whelk. Why is this value lower for a platform set at 5 meters than for one at 2 or 15 meters?
3 step solution
Problem 4
In testing the optimal foraging model, it was assumed that changing the height of the drop only changed the total energy required. Do you think this is a realistic limitation, or might other factors than total energy be affected by height?
3 step solution
Problem 5
Researchers observed that the crows only gather and drop the largest whelks. What are some reasons crows might favor larger whelks?
4 step solution
Problem 6
It turned out that the probability of a whelk breaking was the same for a whelk dropped for the first time as for an unbroken whelk dropped several times previously. If the probability of breaking instead increased, what change might you predict in the crow's behavior?
4 step solution