Write a scientific explanation that describes patterns of interactions among organisms across multiple ecosystems.

The zone, which exists from a depth of 0 to 600 feet, is home to the majority of ocean life.

Which u.s. state lists the horned toad as its state reptile?

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?