Central America is an example of a(n)a. Isthmusb. Divergent plate boundaryc. Megalopolisd. Tundra

Which of these is least likely to be an adaption? a. a mouse digs a hole to hide from predators. b. a snake bites its prey to deliver it deadly venom. c. a jackrabbit has large ears that it release body heat. d. a parrot learns to say its owner's name.

What is the name for the famous "ring" of volcanos? a. ring of flames b. ring of fire c. ring of lava d. ring of death

Which is a trait of a index fossil ?