Which of the following is true about teeth in mammals? a. only large mammals have teeth. b. all teeth in mammals look the same and do the same job. c. mammal teeth do different jobs and are different sizes and shapes. d. it is not possible for a mammal to survive without teeth.

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.