Biology

Definition of Sexual Reproduction:

• Involves two parents who produce specialized reproductive cells called gametes.

Key Evolutionary Benefits:

• Introduces genetic diversity within populations, enhancing adaptability and survival.

Types of Gametes:

• Sperm: Male gametes, typically small and motile.

• Eggs (Ova): Female gametes, larger in size and providing nutrients for embryo development.

Fertilization Process:

• Gametes fuse during fertilization to form a zygote, marking the beginning of development into a new organism.

Methods of Sexual Reproduction:

• Can occur through various mechanisms, such as internal fertilization (common in mammals) and external fertilization (common in fish and amphibians).

Impact on Evolution:

• Sexual reproduction facilitates natural selection acting on genetically varied populations, playing a significant role in evolutionary processes.