Macroevolution refers to evolution that occurs at or above the level of species, in particular speciation and extinction; whereas microevolution refers to smaller evolutionary changes within a species or population, in particular shifts in gene frequency and adaptation.
Sizes of common Patchwork pieces. 1  Fat Quarter = 18â³ x 22â³. 2  Fat Eighth = 9â³ x 21â³. 3  Mini Charm Squares = 2 1/2â³ x 2 1/2â³. 4  Charm Squares = 5â³ x 5  5â³. Layer Cake = 10â³ x 6  10â³. Jelly Roll = 2 1/2â³ x 45â³ (or width of fabric) strips.
Tim Holtz Eclectic Elements Melange Fat Quarter Bundle Description: Designed by Tim Holtz, this assortment includes 8 fat quarters (18'' x 20/22'') from the Eclectic Elements collection in the Melange colorway.