Final answer:
The total daily cost of behavior for an animal spending 4 hours chasing prey and 20 hours resting is 80 KJ.
Step-by-step explanation:
The total daily cost of behavior in kilojoules for an animal can be calculated by multiplying the time spent on each activity by the energy expenditure rate for that activity. In this case, the animal spends 4 hours a day chasing prey and 20 hours a day resting. Let's assume the energy expenditure rate for chasing prey is 10 KJ/hr and for resting is 2 KJ/hr. Calculate the total energy expended:
Total energy expended = (4 hours * 10 KJ/hr) + (20 hours * 2 KJ/hr) = 40 KJ + 40 KJ = 80 KJ.
Therefore, the correct answer is option a. 80 KJ.