Which of the offspring represented in the Punnett square is heterozygous?
Which of the offspring represented in the Punnett square are homozygous recessive?
What are the possible genotypes of the parents?

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /

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the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.