Questions

Activation of the receptors by stimuli is called Sensation.

The degeneration of a signal over distance on a network cable is called attenuation.

Air contains water in a gaseous form called water vapour.

Ctrl+Shift+F Opens the Font dialog box with the focus at the Font combo box.

While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. Cellular respiration takes place in the mitochondria. They need mitochondria for this reason.
Hence with this logic, we can say that Plants cells have mitochondria.