Most otters are solitary. what is different about the kaveri riverecosystem that allows them to exist in such large groups? i need

All of the following are part of the biosphere except

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Me with this homework my gradebook are closing today so