Four exams will be administered over the course of the semester according to the schedule presented below. However, do not take these statements to mean that subjects treated in one part of the class are unrelated to subjects treated in another part of the class. Material for the exams will be taken from lecture and from the textbook. A total of 100 points can be earned on each of the four exams, for a total of 400 points in the lecture portion of the class. Air moves into the lungs of a terrestrial turtle when a. pressure of air in the lungs exceeds the pressure of the surrounding atmosphere, thereby causing the lungs to expand.
Australian lungfish are unable to survive while breathing only air.
Australian lungfish are able to survive prolonged periods of drought by burrowing into the mud at the bottom of their drying pond and by remaining there until rains refill the pond the following year. Australian lungfish live in saltwater whereas the African and South American lungfish occupy only freshwaters. Australian lungfish do not actually possess lungs. The same animal will be neutrally buoyant at a depth of 10 meters when its swimbladder has a volume of a. 4 cm 3 . Students sometimes become ill just before a scheduled exam.