Which section of the ladder codes for a hereditary trait? A The top of the ladder
B The bottom of the ladder
C The vertical sides of the ladder
D The horizontal sections of the ladder

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

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.