biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1-4-5s-hwyfuod8

### <Success style="font-size:25px"> Reproduction Human Reproduction L-1 </Success>
### <primary style="font-size:24px"> Oviparous animals </primary>
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- Undergo all embryonic development outside parent's body
- The female lays her eggs in the external environment instead of retaining them internally
- This method requires less energy, as the developing embryo depends completely on a concentrated nutrients called YOLK within the egg This allows production of more eggs but also reduces their survival because of adverse environment outside

- **Examples-** All birds, most fishes and most amphibians

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![image](/subject-images/iitpal/image/biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1_4-5s_hwyfuod8-028-0142.8.jpg)
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<footer style = "font-size: 18px">Human reproduction $\rightarrow$ Viviparous animals $\rightarrow$ <span style = "color:blue"> Oviparous animals </span> $\rightarrow$ Ovoviviparous animals $\rightarrow$ Organs involved in human reproduction </footer>

### <Success style="font-size:25px"> Reproduction Human Reproduction L-1 </Success>
### <primary style="font-size:24px"> Ovoviviparous animals </primary>
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- Undergo all embryonic development within mother's body, but do not have access to her circulatory system
- The embryo develops within an independent egg and feeds off of an independent yolk
- The egg hatches within the mother's body and live birth takes place
- This process uses an intermediate amount of energy
- The amount of offspring is also intermediate with an intermediate survival rates

- **Examples-** Some fishes, some insects and some snakes

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![image](/subject-images/iitpal/image/biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1_4-5s_hwyfuod8-034-0202.8.jpg)
![image](/subject-images/iitpal/image/biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1_4-5s_hwyfuod8-043-260.399.jpg)

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<footer style = "font-size: 18px">Viviparous animals $\rightarrow$ Oviparous animals $\rightarrow$ <span style = "color:blue"> Ovoviviparous animals </span> $\rightarrow$ Organs involved in human reproduction $\rightarrow$ Organs involved in human reproduction </footer>

<h3 id="success-stylefont-size25px-reproduction-human-reproduction-l-1-success"><Success style="font-size:25px"> Reproduction Human Reproduction L-1 </Success></h3>
<h3 id="primary-stylefont-size24px-male-reproductive-system-primary"><primary style="font-size:24px"> Male Reproductive System </primary></h3>
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<p>Lower Temp $\small 2.25^0$C</p>
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<p>Penis</p>
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<p>Urethra</p>
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<p>Cowper’s gland</p>
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<p>Bulbourethral gland</p>
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<p>Scrotum</p>
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<p>Testis</p>
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<p><img alt="image" src="/subject-images/iitpal/image/biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1_4-5s_hwyfuod8-06.jpg">
<img alt="image" src="/subject-images/iitpal/image/biology-class-12-unit-04-chapter-01-reproduction-human-reproduction-l-1_4-5s_hwyfuod8-07.jpg"></p>
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<footer style = "font-size: 18px">Organs involved in human reproduction $\rightarrow$ Zygote $\rightarrow$ <span style = "color:blue"> Male Reproductive System </span> $\rightarrow$ Male Reproductive System $\rightarrow$ Male Reproductive System </footer>