1. The diagrams above show two viewpoints of the skull of the North American Beaver and the skuil of the Red Fox Why do these two different organisms have similar characteristics in their skull? 2. Although the North American Beaver and the Red Fox have similar characteristics, their skulls also show some differences Explain why the skulls have some differences​

Ithink the answer is b hope this

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.