Heart dissections in science classes have always been a messy affair. For years teachers have cut open cow’s or sheep’s hearts to show students how they look inside, and, while students get to feel and see the heart, they can’t watch as it beats, because the animals are dead. They can’t see the...
from latimes.com - Los Angeles Times http://ift.tt/1CWQs8C
via HEALTH
from latimes.com - Los Angeles Times http://ift.tt/1CWQs8C
via HEALTH
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