Chapter 4 Birds and Mammals Vocabulary Crossword

An endothermic vertebrates that has feathers, a four chambered heart, and lays eggs.
Feather that gives shape to a bird's body.
Short, fluffy feathers that are specialized to trap heat.
A bird's internal storage tank for storing food inside the body after swallowing it.
Thick walled muscular part of the stomach that squeezes and grinds food. Where the "teeth" are located in a bird.
The upward force that results from the difference in air pressure above and below a bird's wings.
A type of bird flight that requires a lot of energy.
A type of bird flight that uses little wing movement, and rising/falling currents of warm air to direct flight.
A type of flight that doesn't use lift, where the bird pulls its wings in close to its body.
An endothermic vertebrate that has a four chambered heart, skin covered with hair/fur, and is fed with milk.
Milk producing organs in a mother's body.
A large muscle located at the bottom of the ribs that allows mammals to breathe in and out.
Egg-laying mammal that drinks milk from pores on the mother's skin.
Mammals whose young are born at an early stage of development, and continue to develop in a pouch on the mother's body.
The length of time between fertilization and birth.
A mammal that develops inside its mother's body until its body systems can function on their own.
An organ in pregnant mammals that passes materials between the mother and the developing embryo.
Flat-edged teeth used to bite off and cut food.
Pointed teeth that stab food and tear into it.
Broad, flat upper surfaces for grinding and shredding food.