Which statement best describes ecological succession? It is always caused by human intervention. It occurs after a disturbance. It never occurs in a predictable pattern. It is a series of rapid changes in an ecosystem.

The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane

Which are reasons cells undergo cell division?

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?