Which statements are not true?

all rhombuses have only one pair of sides of the same length.
all rhombuses have right angles.
all rhombuses have two sets of parallel sides.
all rhombuses have four sides of the same length.

All rhombuses have four sides of the same length is the statement that is not true.

Explanation:

Rhombuses only have two sets of the same length. If it had four sides of the same length, it would actually be called a square. A square has 4 sides of the same length and is the only polygon that can be described as such.

i believe it would be the lungs.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.