Barnacles live in salt water attached to sturdy objects such as rocks. All the appropriate rock surfaces in a bay are already covered with barnacles. This lack of surfaces to attach to is an example of , which is a(n) factor, acting as a(n) factor that could stop the barnacle population from growing. A. space

B. water

C. climate

D. abiotic

E. biotic

F. limiting

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.