Final answer:
Maynard-Smith's model of sex presents a paradox for evolutionary biology, but it does not work in real life because sexual reproduction provides advantages such as genetic diversity and the ability to adapt to changing environments.
Step-by-step explanation:
Maynard-Smith's model of sex presented a paradox for evolutionary biology because it suggested that sexual reproduction should not persist in stable conditions.
According to his model, asexual reproduction would be more advantageous because it produces more offspring and is less costly.
However, in real life, sexual reproduction persists because it provides advantages such as genetic diversity and the ability to adapt to changing environments.
Sexual reproduction leads to offspring with different combinations of genes, increasing the chances of survival and adaptation.
It also enables the removal of harmful mutations through recombination and provides an opportunity for natural selection to act on beneficial traits.