As a tree ages it needs to keep making more xylem and phloem cells to carry water and food how does this occur

Place the steps tor the formation of the enzyme pepsinogen in correct order

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

A60-tooth gear is connected to a 72-tooth gear.if the smaller gear turns 12 times,how many turns does the larger gear make?