Which of the following best describes the exercise principle of specificity

Are all toddler boys hard to pottytrain?

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs

Avirus consisting of a single strand of rna, which is transcribed into complementary dna, is a ) proteaseb) retrovirusc) rna replicase virusd) nonenveloped virus