Certain chest deformities prevent normal expansion of the chest. explain why this makes ventilation difficult in terms of pressure and volume.

Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples

Match the following terms and definitions. the transformation of a larva to an adult; occurs only in animals having great differences in form between the larva and adult pupa 2. type of mammal that lays eggs monotreme nymph the part of certain insect life cycles in which the young animal has no wings or reproductive organs the developmental stage between larva and adult in insects undergoing metamorphosis metamorphosis 5. the male gonad which produces sperm testes

What name is given to the process in which a strand of dna is used as a template for the manufacture of a strand of pre-mrna?