Which describes a constant in an experiment?
a. the variable changed by the experimenter
b. the quantity that must remain the same
c. the variable that changes in response to the experiment
d. the statement that is worded to test the experiment

The deserts of the sahara and australia are associated with

Are salt and soap nutrients or toxins for yeast? explain.

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.