. The
cycle ensures water is recycled through the biosphere. It is
key to all living things as a
, a main part of biological

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

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.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?