The debate regarding viruses continue. according to this passage, some consider viruses to be alive because they a) reproduce. b) cause disease. c) respond to stimuli. d) contains dna or rna.

is this a psat question, if so do not cheat try your best.

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.

dna is a set of a gene held together by a chemical bond