Which of the following is a characteristic of morphogens? They are released to blood stream and act on cells very far away from the source.
O 2.
Different concentration of morphogens can turn on different gene expression.
03.
They only act on the cells that produce them.
04.
Their concentration increases with distance from source.

Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan and tom. bob has decided that susan's meals should contain at least 320 mg of calcium, 17 mg of iron, and 42 mg of vitamin c, whereas tom's meals should contain at least 280 mg of calcium, 13 mg of iron, and 34 mg of vitamin c. bob has also decided that the meals are to be prepared from three basic food