Vitamin D is sometimes called the sunshine vitamin because a. it is available in fresh orange juice b. exposure to sunlight converts a precursor form to vitamin D c. it can be destroyed by exposure to sunlight d. it is the yellow-orange color of the sun

What is the key to the recognition of codominance?

Which particle controls what element an atom is?

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.