[heâ³mah-to-poi-eÂ´sis] the formation and development of blood cells. In the embryo and fetus it takes place in a variety of sites including the liver, spleen, thymus, lymph nodes, and bone marrow; from birth throughout the rest of life it is mainly in the bone marrow with a small amount occurring in lymph nodes.
Calories in a Crispy Pico Guacamole Chicken Sandwich There are 680 calories in a Crispy Pico Guacamole Chicken Sandwich from McDonald's. Most of those calories come from fat (41%) and carbohydrates (41%).
Fast Food vs. Homemade. A McDonaldâs bacon, egg, and cheese breakfast sandwich has 420 calories, 23 grams of fat, 235mg of cholesterol, 1160mg of sodium, and 37g of carbs. Not to mention that all the ingredients are completely processed, filled with preservatives, and who knows what else. Yikes and that is just their basic sandwich!