Select all that apply. animals can communicate by making noises making gestures physical contact using scents or odors

Making noises. physical contact using scents or odors is only when they want to know who is who. for example that is why dogs smell each other in the rear end (they also do it to people) because every living animal has a different smell and instead of going by looks like us humans do they go by their sense of smell. hope this helps.

I’m not really sure

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.