Phoenix feathers are either red or orange. Red feathers are the dominant trait. Two heterozygous red phoenixes mate,

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.

i think the answer is a.keratin is the pigment responsible for skin color.

geographic isolation