But it was with a Met security guard that he found a new piece. The only way Tommasino could explain it was as a "divinely ordained encounter." Khalil's sculpture, carved out of a single piece of ...

Every single letter on the grid is used to spell out the theme words and there is no overlap. Every letter will be used once, and only once. Each puzzle contains one “spangram,” a special ...

Guard cells are pairs of epidermal cells that control gas diffusion by regulating the opening and closure of stomatal pores. Guard cells, like other types of plant cells, are surrounded by a ...