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Our Environment
Question
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What are the functions performed by the testis in human beings?

Answer

Testis are the sites for the formation of sperms. They also produce a hormone named testosterone which is responsible for the development of secondary sex characters in males.

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Some More Questions From Our Environment Chapter

Why would an individual waste energy on a process it does not need to stay alive?

Is an offspring exactly similar to its parent? Why or why not?

How are variations important?

What is the importance of DNA copying in reproduction?

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.