What is the major cause of iron deficiency?

Red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the f1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

Which organ controls breathing? lungs alveoli heart diaphragm