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.
When we cut a regular quarter yard (.25), we cut 9â³, which is 1/4th of 36â³ (a yard.) Open it up and you have a long, skinny piece that is 9â³ x 44â³. To cut a fat quarter, we first have to cut a half yard (18â³) off the bolt. We cut along the fold.