Variation From Sexual Reproduction Practice Test

A simplified model shows two parent lizards and six offspring. Parent 1 has a green body and a long tail. Parent 2 has a brown body and a short tail. The offspring show a mix of green and brown bodies and a mix of long and short tails. The model states: “Sexual reproduction produces variation among offspring.”

Which prediction about variation is supported by the model?

A simplified model of sexual reproduction shows two parent rabbits and four offspring. Parent 1 has short ears and black fur. Parent 2 has long ears and white fur. The offspring are: Offspring A: short ears, black fur; Offspring B: long ears, black fur; Offspring C: long ears, white fur; Offspring D: short ears, white fur. The model states: “Sexual reproduction produces variation among offspring.”

Which explanation best accounts for the evidence of variation among the offspring in this model?