Final answer:
The mosquito growth rate for the first 20 days would depend on the specific species and environmental conditions. If the climate became very hot and very dry, the population would either decrease or stay the same depending on the combination of temperature and humidity.
Step-by-step explanation:
The mosquito growth rate for the first 20 days would depend on the specific species of mosquito and the environmental conditions. However, based on the information given, if the climate shifted to very hot (above 30°C) and very dry (below 60% humidity) conditions for an extended period of time, the mosquito populations would either decrease or stay the same, depending on the combination of temperature and humidity.
If the temperature is above 30°C and the humidity is below 60%, the mosquito populations would decrease. This is because temperatures above 30°C are the upper limit for parous females, leading to a drop in offspring production. Additionally, below 60% humidity not much change would be seen in the population of mosquitoes.
However, if the temperature is above 30°C and the humidity is close to the favorable conditions for offspring production by parous females, the mosquito populations would stay the same. In this case, higher temperatures would not affect the production of viable offspring, but drier conditions (below 60% humidity) would cause a drop in the population, as it is the lower limit for offspring production.