Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. ... After each breath, the blowhole is sealed tightly by strong muscles that surround it, so that water cannot get into the whale or dolphin's lungs.
Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. ... After each breath, the blowhole is sealed tightly by strong muscles that surround it, so that water cannot get into the whale or dolphin's lungs.
In evaluating expressions and obtaining a correct answer, a person must follow the following four steps: (1) Evaluate the information in grouping symbols. (2) evaluate anything with an exponent. (3) Multiply and divide in order from left to right (4) Add and subtract in the same order from left to right.