El grupo sanguíneo de Pablo es tipo B heterocigoto, mientras que el de grupo sanguíneo de Mariela es tipo O. ¿Cuál es el porcentaje esperado de que tengan hijos homocigotos recesivos (O) para el grupo sanguíneo?

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata

Explain how organisms could be harmed by high levels of salt from roadways?