Which one of the following correctly lists the three layers of an arterial wall, beginning at the lumen and moving outward?
a. tunica intima, tunica media, tunica adventitia b. tunica intima, tunica muscularis, tunica externis c. tunica inner, tunica middle, tunica external d. endothelium, circular muscle, longitudinal muscle

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

What is the similarities and differences between bacteria and eukaryote?

Reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?