mandible

"a low wall a low shelf"

"My ready money is low, so I can't afford the new textbook. "

"My sister is very helpful, especially when it comes to organizing things. "

"Turn the doorknob to open the door."

"Hold the pencil like this."

"The carpenter carefully cutting the wood with a sharp knife. "

"The students designed posters for the school fair. "

"The dog's tail wagged excitedly when his owner came home. "

"Here are some healthy Halloween treats for ghouls and witches of all ages."

"The dentist examined the X-ray of my jawbone to check for any problems with my teeth. "

"The fans, or brushes, create currents in the water that direct food toward the larvae’s mouthparts and help stuff the food into their deeply concealed mouths."

"The spider, a common arthropod, has eight legs with many joints and a hard outer shell. "