31-2 section assessment
Rashad mcneey
Key concept
1. describe the characteristics of a bird
Reptile like animals that maintain a constant internal body temperature. They have an outer covering of feathers; two legs that are covered with scales and are used for walking or perching and front limbs modified into its wings
2. list three ways in which birds are well adapted for flight
Aerodynamic feathers and wings then strong lightweight bones ; and strong chest muscles and highly digestive ; respiratory and circulatory systems
3,what is the possible evolutionary relationship between birds and dinosaurs?
They both excrete nitrogenous wastes in the form of uric acid. The bones that support the front and hind limbs and several other parts of the skeleton
4. how does a chick gets out of its eggshell
It has too do a lot of pushing, poking, prodding by the chick
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What is Archaeopteryx
It’s the first birdlike fossil discovered. The fossil dates from the late Jurassic period, about 150 million years ago
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What is an endotherm?
Its animals that can generate their own body heat
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How is their respiratory system advantageous to birds?
The constant, one-way flow of oxygen-rich air helps birds maintain their high metabolic rate

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Do birds have external or internal fertilization?
External fertilization