Answer:
In a darker background, natural selection favors the darker birds.
Same goes for a ligter background
Explanation:
There is pressure in a population to look the same, because if you are white in a flock of regular pigeons, you will be targeted by predators, mainly Peregrine Falcons. However, in a city environment, it my benefit you (the pigeon) to be a different color, as more people will feed you. However, due to the release/escape of domestic pigeons, new colors that would not have appeared in the wild population are there.
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They would study C. Mollusk
Bladder, I believe. But they are saying that my answer must be 20 Characters long...
Answer:
The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis.
Explanation:
The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis.