Biology

All living organisms use DNA as their genetic material. All living organisms, from bacteria to humans, use DNA (or RNA in some viruses) as their genetic material. DNA carries the genetic instructions for the development, functioning, and reproduction of all living organisms.
For B: This is incorrect. Not all living organisms have a circulatory system. For example, unicellular organisms like bacteria or simple multicellular organisms like sponges do not have a circulatory system. Only more complex organisms, like vertebrates, have a circulatory sy...