All living things contain carbon. which of the following statements are true about carbon atoms? i. each carbon atom can form single bonds with up to four other carbon atoms. ii. each carbon atom can form double bonds with up to two other carbon atoms. iii. carbon atoms can join together to form chains or rings. iv. a single molecule of some compounds can contain thousands of carbon atoms.

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

the answer is "a.) well–developed vascular system."

explanation:

i know can you plzz me with this question im sorry i didt answer your question i just need hel.