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a surfer is able to stay on the surfboard as she rides the waves.

which explains the force(s) that enable her to do this?

a.
the force of gravity pulls the surfer into the surfboard with enough force to hold her on the surfboard.

b.
the forward force of the surfboard's acceleration is balanced by the backward force of the surfer's mass.

c.
the surfer exerts a force on the surfboard, and the surfboard exerts a force on the surfer that is equal in magnitude and opposite in direction.

d.
the force of friction between the surfer and the surfboard keeps the two traveling together.

What role do traits play in affecting an organisms ability to reproduce? finches

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 enzymes break down carbohydrates?