What might explain why light travels in a straight line?

The nursing instructor has been observing nursing students initiate an iv infusion. which action(s), if made by the nursing student, indicates that further instruction is needed? (select all that apply.) the nursing student:

Select the word from the list that best fits the definition a system made of 25 satellites

Fungi exist as single cells or as branching networks of multicellular filaments. how does the structure of filaments relate to their function