[Solved] Atoms or clusters of atoms that are covalently bonded to carbon and influence the behavior of organic compounds are known as A) functional groups. B) ions. C) acids. D) network solids. E) anhydrides. Corpus Spongiosum: A spongy tissue surrounding the male urethra within the penis, engorging with blood during an erection to prevent the urethra from pinching closed. Homologous: In biology, referring to organs, structures, or genes that derive from a common ancestor, sharing a similar position, structure, or evolutionary origin. Glans Clitoris: The erotically sensitive tip of the clitoris. Testosterone: A steroid hormone that plays a key role in the development of male reproductive tissues and the promotion of secondary sexual characteristics.