Epithelium which has the appearance of multiple cell layers but is really composed of a single layer is called:
A. simple epithelium
B. stratified epithelium
C. pseudostratified epithelium

Contrast how pollination is different among gymnosperms and angiosperms.

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.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?