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All mammals have ________________________________ bones in their middle ears.
three
____________________________________________ is the general name for mammals that
give birth to live, premature young, and then care for them in pouches. Marsupials
The general name for mammals that lay eggs, incubate them, and then care for the developing
young in pouches is __________________________________________. Monotremes
_________________________________________________ is the general name for mammals
that give birth to live, well-developed young. Placentals
_____________________________________, which are members of the largest mammalian
order, have prominent, chisel-shaped incisors. Rodents
Hibernation is the state of deep ______________________________ that some rodents enter
into during the winter months. sleep
The only mammals that can fly are _____________________________. bats
In an odd-toed hoofed mammal, cellulose not digested by the stomach enters the
__________________, which contains bacteria that digest the cellulose. cecum
Mammal group in which each member has an extremely low metabolic rate and extra joints in its
vertebral column toothless placental
General name of mammals whose primary food source is meat carnivores