How are sex-linked traits and sex influenced traits different from each other?

Sex-linked traits would be consideredtraits like sickle cell anemia and color blindness. Sex-influenced traits are autosomal traits that are influenced bysex. If a male has one recessive allele, he will show that trait, but it will take two recessive for the female to show that same trait. One such gene is baldness.

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.