Final answer:
In warm climates, the design of a mosquito net should have a smaller mesh size to effectively prevent mosquito bites and disease transmission.
Step-by-step explanation:
The climate of an area can affect the design of a mosquito net to be used there. Specifically, in climates that are very warm, mosquitoes that spread diseases like malaria are more common. To effectively prevent mosquito bites and disease transmission, the design of mosquito nets in such areas would require a smaller mesh size. This is because a smaller mesh size would prevent even the smallest mosquitoes from passing through the netting and reaching the person sleeping under it.