List the functions of the 4 macromolecules?

Which type of bond forms between water moleculesstrong bondhydrogen bondcovalent bondpolar bond

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell