What is the observable characteristic of a person called? A)genotype
B)phenotype
C)allele
D)gene

Approximately hiw many new case of sti occur in the united states

Explain which dri value would you use to make sure that the vitamin supplement that you use does not contain too much vitamin a

Which of the following foods would be the best choice for someone who's lactose-intolerant?   a.  frozen yogurt    b.  strawberry sorbet    c.  cheesecake    d.  chocolate ice cream