5. What regulates metamorphosis in frogs and toads? * (2 Points)
Estrogen
Thyroxine
Nictitating membrane
Amplexus

Choose the false statement. a. some organisms fossilize when frozen or dried out. b. bacteria can destroy dead plants and animals. c. it is common for a plant or animal to fossilize when it dies. d. rapid burial under small-sized sediment increases the chance for fossilization to occur.