Compare the teeth of Australopithecus afarensis and Homo sapiens
What will be an ideal response?
a. Describe similarities and
differences between the two species. The teeth mount into the jaw similarly in both
Australopithecus afarensis and Homo sapiens. A. afarensis has fewer, larger teeth than
Homo sapiens with more prominent canines and large molars. b. Write a hypothesis about
dietary differences between the two species based on their teeth. Based on dentition, A.
afarensis had a diet that consisted mainly of leaves, fruits and nuts, seeds and insects
whereas Homo sapiens are more omnivorous.
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The vital capacity, or maximal amount of air that one can move, is the sum of ________
A) inspiratory capacity and functional residual capacity B) inspiratory capacity and residual volume C) inspiratory reserve volume and functional residual capacity D) inspiratory reserve volume, tidal volume, and expiratory reserve volume
Over the course of several months, Morris has experienced difficulty speaking coherently, clumsiness, muscle fasciculations, and increasing weakness in his limbs. These symptoms are most consistent with those of
A. amyotrophic lateral sclerosis. B. Hodgkin's disease. C. muscular dystrophy. D. Parkinson disease.
In osseous tissue, which of the following is able to break down bone?
A) osteocytes B) osteoclasts C) capillaries D) osteons E) nerves
Ventilating the gills by taking water in through the gill openings, as well as using the gill openings for water ejection, is not a very efficient way of doing things. Why, then, do adult lampreys ventilate their gills this way?
What will be an ideal response?