Sexual_Reproduction_Presentation for grade 7.pptx

ppt

1. Sexual Reproduction Involves two parents and the fusion of gametes to produce genetically unique offspring.

2. Definition Sexual reproduction requires the combination of genetic material from two parents. It results in offspring that are genetically different from both parents.

3. Process • Formation of gametes (sperm and egg) • Fertilization (fusion of gametes) • Development of zygote into new organism

4. Examples • Humans and most animals • Flowering plants (pollen + ovule) • Fish and amphibians

5. Advantages • Produces genetic variation • Greater adaptability • Helps in evolution and species survival

6. Disadvantages • Requires two parents • Slower process • Consumes more energy • Fewer offspring produced

7. Comparison with Asexual Reproduction Asexual: One parent, identical offspring, faster. Sexual: Two parents, unique offspring, slower but adaptive.

8. Summary Sexual reproduction increases diversity and adaptability, making species better suited to survive environmental changes.