How does new information about the little mountain opossum Dromiciops help us understand past patterns of marsupial diversification?
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Dromiciops lives in South America, yet both morphological and molecular data show it to be the sister taxon to the monophyletic grouping of the Australian marsupials. This supports the hypothesis that the Australian marsupials came from a South American stock and then migrated from there across Antarctica to Australia.
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Inguinal hernias are associated with a weakness in the
A. linea alba. B. axillary border. C. umbilicus. D. superficial inguinal ring. E. pubic tubercle.
________ is a condition in which there is air inside the thoracic cavity and outside of the lungs
A) Pneumothorax B) Pleuritis C) Pleurisy D) Hemothorax
Antibodies typically act extracellularly in body fluids and are therefore considered part of the humoral branch of adaptive immunity
Indicate whether the statement is true or false
Why does there seem to be a link between smell and memory?
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