What enzyme? But I do know that the RNA polymerase unhinges/ unwraps the DNA apart creating making an mRNA able to be made from the DNA
Answer:Limiting factor is a factor which can limit the abundance, distribution of the species in an ecosystem this can be a resource, predator or natural disaster. The black swallowtail butterfly feeds on endangered plant named Candy's dropwort. If the plants continue to decrease the population of black swallowtail butterly will also decrease as decrease in the plant population will act as a limiting factor for the growth of butterfly population.
Explanation:
I'm assuming you meant and frailness not fertility, in which case it is the oldest old period
