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Primary and secondary sexLesson Transcript Instructor: James Greaver Jim has a master's degree in secondary Education and has taught English from middle school level to college. In this lesson, we will learn about secondary sex characteristics. We will define the term and examine how these characteristics are seen in humans as well as in various animals. Secondary Sex Characteristics in Humans Have you ever really considered the differences between males and females in various species? If you have, you may have noticed the differences in physical traits between the two sexes. Without even realizing it, you were likely thinking about both primary and secondary characteristics.Abstract. Sex allocation is one of the most productive domains of behavioral ecology and has led to a sophisticated understanding of factors. Primary and secondary sexual characteristics: Study of their development in males from birth through maturity, with biometric study of penis and testes. The effect of sex steroids on primary and secondary sex differentiation in the sexually dichromatic reedfrog (Hyperolius argus: Hyperolidae) from the Arabuko ...the end of the story look at the video above ↑ ↑ ↑

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