10
Being nocturnal is an adaptation that helps desert animals survive because
-they avoid the intense nighttime cold
-they avoid the intense daytime heat
-they are protected in their burrows at night
-they avoid nighttime predators

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

Construct at least two possible hypotheses for the student’s experiment.

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer