1The xylem and phloem are the two types of vascular tissues that transport sap throughout a plant.
2In the spring, the sap of the maple tree is tapped to produce maple syrup.
3The botanist studied the composition of the sap to understand how it contributes to the plant's defense mechanisms.
4The logger carefully avoided the sap that flowed from the freshly cut tree trunk to avoid getting it on his clothes.
5The process of extracting sap from rubber trees is labor-intensive and requires great skill.