When a hollow organ undergoes peristalsis, the longitudinal layer of smooth muscle contracts and the organ

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.

Competition occurs between species when

When analyzing tree rings, what do scientists assume a thin ring indicates?