D. an arctic fox is brown in summer and white in winter
Answer: Producers
Explanation: Producers are autotroph, which means they make their own food, like plants.
There are several. there is rainwater*, glaciers, and rivers/streams.
*the rainwater I am talking about is the kind that falls from the country. no acid rain
B) wavelength
Notice how Z goes from one wave's crest (top) to another's crest. Wavelength can also be measured from a wave's trough (bottom) to the next one's trough.
The limiting factor on the population of Arctic foxes is density-dependent. In population ecology, density-dependent processes happen when population growth rates are regulated by the density of a population. Density-dependent factors are factors where the effects on the size or growth of a population vary with the density of the population itself.
