At certin times of the year, the male sage grouse can be seen inflating the air sacs on his chest and singing loudly to a femal sage grouse. this behavior is likely an example of a(n)

c. heat from the poles back down towards the equator.

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.

not: both offer magnification to the atomic level.