Subunits of a cell function independently

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation

If people from georgia have just experienced an extremely cold winter the last couple of months, what would the climate most likely be classified as? polar temperate maritime tropical