One group of reptiles, characterized by the fossil Archaeopteryx, led to the evolution of birds. The correct answer is birds
The first answer should be the right one
Mammal? Is this for science or?
An environment high in carbon dioxide and high in oxygen induce oxygen to bind to hemoglobin. Another factors are an environment under high pressure and an environment under low pressure.
Metals are malleable
Metals are ductile
Metals are good heat and electricity conductors
Metals lose electrons in reactions.