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Question 8 Frogs can survive in water and on land. Most frogs, however, need water for reproduction. During the breeding season, male and female frogs release millions of gametes into the water. \( 8.1 \quad \) Name the type of fertilisation described above. \( 8.2 \quad \) Explain why millions of gametes are released. \( 8.3 \quad \) State why the reproduction in frogs is an example of ovipary.
Ask by Jimenez Welch. in South Africa
Feb 25,2025
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8.1 External fertilization.
8.2 Millions of gametes are released to increase the chances of successful fertilization in the water.
8.3 Frog reproduction is oviparous because eggs are laid in water.
Solution
8.1 External fertilization.
8.2 Millions of gametes are released because fertilization occurs outside the body in an aquatic environment, where gametes are quickly diluted and exposed to various hazards. Releasing many gametes increases the probability that some sperm will meet and successfully fertilize the eggs.
8.3 Frog reproduction is considered oviparous because the eggs are laid in water, and the developing embryos receive little to no direct parental care once the eggs are laid.
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The type of fertilization described is external fertilization, where the male and female frogs release their gametes into the water, allowing fertilization to occur outside the female's body. This method enhances genetic diversity and increases the chances of survival for the species. Millions of gametes are released to compensate for the high predation rates and environmental threats that eggs and larvae face. By releasing so many gametes, frogs increase the likelihood that some will survive through various life stages, ensuring the continuation of their species despite the odds stacked against them.
