Changes in the environment result in .geologic erasc. plate tectonic changesb. physical changes in speciesd. all of the above

Changes in the environment result in Physical Change in species. So That is your answer. Hope this helps! :)

~Shadow Wolf

The answer is Physical Changes in species. 

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.