What structures might be found on the underside of fern leaves? seeds pollen spores

"do a testcross with a homozygous recessive plant."

feral cats are estimated to eat tens of millions of native animals each night in australia

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.