Some animals in nature adapt to their changing environment. Those that are successful are able to reproduce and pass on their traits to future generations. This is an example of A:mutualism
b:selective breeding
C:natural selection
D:cloning ​

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.