Gene pool of the population at Hardy-Weinberg Equilibrium remain constant over time.
Explanation:
According to the Hardy Weinberg principle, the allele and genotype frequencies in a population remain constant in absence of factors of evolution. Here, the population should be randomly mating to be at Hardy-Weinberg Equilibrium. Since the moth population is at Hardy-Weinberg Equilibrium, it should have constant allele frequencies from one generation to next.
They can exchange both matter and energy, exchange energy but not matter, Isolated systems can exchange neither energy nor matter. In a closed system only energy can be exchanged; matter stays inside.
In a open system matter and energy can be exchanged
The answer is : A bios or cmos jumper. The jumper acts as a switch by closing (or opening) an electrical circuit. Clearing the CMOS on your motherboard will reset your BIOS settings to their factory defaults. After clearing the CMOS, you'll need to access the BIOS setup utility and reconfigure your hardware settings.