sexual reproduction is a source of genetic variatio in offspring
offspring is product_of_sexual_activity. sexual_reproduction is reproduction. genitalia is reproductive_organ. anisogamy is sexual_reproduction. offspring is relative. males_and_females has genital_intercourse_to_create_offspring fertile_animal is sexually_mature_thing. varanidae is reptile_family. isogamy is sexual_reproduction. sexual_reproduction is biological_reproduction.