Lima beans were domesticated in South America thousands of years ago. Their physical structure is no longer identical to the structure of the wild plant they are descended from. Summer squash also ______ its wild ancestor. That ancestor plant had a hard rind and bitter flesh. Indigenous people in eastern North America carefully bred the crop until it had a soft rind and mild-tasting flesh.

Although more documentaries are being made than ever before, too many seem ______, offering stories without any depth. In a refreshing contrast, Ahmir "Questlove" Thompson's 2021 documentary Summer of Soul (...or, When the Revolution Could Not Be Televised) draws from present-day interviews to supply compelling historical and social context for footage of the 1969 Harlem Cultural Festival.

"Eyes of Zapata" is an English-language short story by Sandra Cisneros. It occasionally includes Spanish words and phrases. The English text surrounding these words and phrases ______ their meaning, so readers who aren't familiar with Spanish can easily read the story. Ana Castillo takes the same approach in her novel So Far from God.

Among saltwater fish species, there is a clear association between latitude and morphological variety. While tropical species are ______ deep-bodied physical forms (body shapes that are laterally compressed but vertically extended), polar and temperate species are highly dispersed across the morphological spectrum.

The following text is adapted from Edith Wharton's 1911 novella Ethan Frome. Her mind was a store-house of innocuous anecdote and any question about her acquaintances brought forth a volume of detail; but on the subject of Ethan Frome I found her unexpectedly reticent. There was no hint of disapproval in her reserve; I merely felt in her an insurmountable reluctance to speak of him.