They produce narrow-band high-frequency sound to help them navigate in water. These high-frequency sounds are used in echolocation. Echolocation is used to identify and locate prey and also avoid the predators. Marine mammals like whales and dolphin use echolocation in different manners.
A: Taxon.
The terms order and class both refer to 2 specific levels that are a part of Linnaeus' classification systems.
Cell division is important for many processes such as growth, the healing of wounds, cell repair and reproduction, etc., Not only is cell division play an important role for humans but even for parasites like paramecium. Paramecium use it as a source of reproduction, this action is called binary fission.
Hope this helped!
If you have any questions let me know!
Mutualism, they both help each other out and both benefit