The law of superposition states that layers of sedimentary rock are a. ordered in a random fashion, with the age of the rock varying wildly from one layer to the next. b. ordered in a time sequence, with the oldest layers on the bottom and the youngest on top. c. ordered in a repeating pattern, with every third layer being identical. d. ordered according to the age of the volcano that created the layer.

The distribution of related animals and plants across the world

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.the diverse proteins found in and attached to membranes perform many important functions.the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together.membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above