Higher organisms have resorted to sexual reproduction in spite of its complexity, why?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Sexual Reproduction**: Sexual reproduction is a complex process that involves the fusion of gametes (sperm and egg) from two parents. This complexity includes various stages such as gamete formation, mating, fertilization, and development of offspring.

2. **Importance of Reproduction**: Reproduction is a fundamental characteristic of living organisms. It ensures the continuation of species and prevents extinction. Both sexual and asexual reproduction serve this purpose, but sexual reproduction has distinct advantages.

3. **Adverse Conditions and Reproductive Strategies**: While lower organisms often reproduce asexually, they may switch to sexual reproduction during adverse conditions. This adaptability allows them to increase genetic diversity, which can be beneficial for survival in changing environments.

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