The main food sources of the birds( the plentiful recourses within the environment occupied by the species)
Answer: Dogs are Biotic factors. They are usually domesticated and are house pets. Dogs are living creatures and need food and water to live. What is the abiotic factors of a dog? Abiotic factors are the nonliving parts of an organism’s habitat. These factors include sunlight, soil, temperature, oxygen, and water.
Explanation: Hope this helps :)
D, the black squirrels have survived because black has provided them with an advantage in this environment.
