[Solved] Patents, copyrights, and trademarks are all mechanisms to promote A) intellectual property rights. B) on-the-job training. C) investment in human capital. D) screening or signaling. 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. Secondary Sex Characteristics: Physical traits that emerge during puberty but are not directly involved in reproduction, such as breast development in females and facial hair in males. Labia Majora: Two folds of spongy flesh extending from the mons pubis and enclosing the labia minora, clitoris, urethral opening, and vaginal entrance. Also known as outer lips.