12 MEDICAL DEVICE REGULATIONS In Canada, devices of classes III and IV are subject to in-depth regulatory scrutiny,while class II devices require only the manufacturerâs declaration of device safety andeffectiveness before sale.
No problem: Polar bears in the study were seen swimming distances of 90 miles without any problems - and some bears went a lot further Scientists discovered that during the summer months, when sea ice is at its minimum, the bears were swimming farther and for longer periods of time than ever before in search of new hunting grounds.
Confidence votes 71.8K. The polar bear is the largest carnivore on the earth. They can measure between 2.4 to 3 meters in length (7.9 to 9.8 feet). Females are comparatively smaller and and measure 1.8 to 2.4 meters (5.9 to 7.9 feet) in length.he den is usually about the size of a telephone booth, with several small â¦ alcoves, where the female may give birth to cubs, if she is pregnant, during the long winter sleep. Females are not the only Polar Bears to take a winter sleep or to dig a den.