In the lock-and-key model of enzyme action, the fits into of the enzyme. a. product, substrate b. active site, product c. substrate, active site d. active site, substrate

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

Wich is not standing in the way of astronomers getting a good view of different star