A normal female X H X H marries a man who has hemophilia.
What percentage of their sons will have hemophilia?

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science