Brainlies ! 1. carbohydrates and fats both can be used as an energy source by organisms can be bonded together to construct dna molecules are made up of the glucose monomer are monomers that can be made into large polymer chains 2. answer the piture question too . : )

1. The correct answer is A. Carbohydrates and fats are used for energy. For example, glucose, a monosaccharide carb, is used in cellular respiration to make energy.

2. It is not a carb or lipid as there is a Nitrogen. Your answer is Protein because it's showing an amino acid, the monomer of all proteins. There is an amine group, a carboxyl group, and R-Group. Therefore, it has to be C.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".