The eastern grey squirrel lives mostly in oak trees that have a medium gray bark. in some cities, oak tree bark is darkening due to air pollution. this eastern grey squirrel shows melanism, or the increase in black pigment in its fur. what is most likely the reason for the change in fur color?

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-

The effect of a hormone on a target cell may be decreased by the presence of

Chitin is a chemical component of the cell walls