Reproductive Systems in Animals
Biology ⇒ Reproduction and Development
Reproductive Systems in Animals starts at 8 and continues till grade 12.
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Describe the function of the epididymis in the male reproductive system.
Describe the main differences between oviparous, viviparous, and ovoviviparous animals.
Describe the role of hormones in regulating the menstrual cycle.
Explain the difference between sexual and asexual reproduction in animals.
Explain the role of the placenta in mammalian reproduction.
Explain the significance of genetic variation in sexually reproducing animals.
Explain why external fertilization is less common in terrestrial animals.
Name two animals that reproduce by external fertilization.
A researcher observes that a certain animal species can change sex from female to male during its lifetime. What is this phenomenon called, and what could be an adaptive advantage of this reproductive strategy?
Compare and contrast the structure and function of the male reproductive systems in mammals and birds.
Describe the process and significance of capacitation in mammalian sperm.
Explain how temperature-dependent sex determination (TSD) operates in reptiles and discuss its evolutionary significance.
In a certain species of fish, both males and females release their gametes into the water simultaneously. What is the term for this type of fertilization, and what are two challenges associated with it?
