Kylie is twelve and is starting to notice that her breasts are starting to develop and is growing thicker underarm/leg hair. These outward changes are considered which type of sex characteristic? Spermarche Menarche Secondary Primary

The human ABO blood type exhibit codominant inheritance pattern, where the \( A \) and \( B \) alleles are codominant, while the \( O \) allele is recessive. What would be the genotype of an individual which is blood type \( A B \) ? A. They would be heterozygous for the \( A \) and \( B \) alleles (i.e. \( A B \) ). B. They would be homozygous for the \( A \) and \( B \) alleles (i.e. \( A B \) ). C. They could be heterozygous fort the \( A \) and \( O \) alleles (i.e. \( A O \) ) or the B and \( O \) alleles (i.e. BO). D. all of the above.

Kylie is twelve and is starting to notice that her breasts are starting to develop and is growing thicker underarm/leg hair. These outward changes are considered which type of sex characteristic? Spermarche Menarche Secondary Primary

What is a possible negative effect of excess phosphorus in the water? Choose 1 answer: (A) High rates of cellular respiration (B) Increase of aquatic life (C) Decrease of algae blooms (D) Development of dead andes"

What triggers the release of parathyroid hormone (PTH)? B. decreasing sodium ion concentration of the blood C. increasing potassium ion concentration of the blood D. increasing calcium ion concentration of the blood

1. How is air in a tire like blood?