Answer:
A. clear cutting the rainforest
Explanation:
In ecology, density independent factors are defined as the factors that influences birth or death rates of a population, regardless of the population density.
Density independent factors generally include physical factors of environment and are unrelated to the size of the population.
Density-independent regulator of population growth of poison dart frogs in the rainforest will be affected by clear cutting the rainforest because if the animal will loss its habitat and the required condition to live which is rainforest, it will unable to survive which will lead to increase in death rates of poison dart frogs.
Hence, clear cutting of raiforest leads to loss of habitat as well as its food resources, the correct answer is A.
