The modification of a plant or animal species by choosing parents with desirable (wanted) characteristics is called: 1. natural selection
2. variation
3. selective breeding
4. inbreeding

Yes the correct answer would be a. direct contact

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.