Name the five nitrogenous bases, and put a checkmark in the correct column for each base. also indicate if the base is found in dna (d), rna (r), or both (b).

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.