In a population of finches, birds with small, thick beaks can efficiently crack the seeds of one species of plant, while birds with long, thin beaks can efficiently crack the seeds of another plant species. Birds with medium-sized beaks cannot efficiently eat either kind of seed. After many generations, the distribution of beak size in these birds will be because of .

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.

The most effective way to provide children with safety messages is to

What is the next step in muscle contraction after the actin changes shape