After a baby is born and the umbilical cord is cut, some blood remains in the blood vessels of the placenta and the portion of the umbilical cord that remains attached to it. After birth, the baby no longer needs this extra blood. This blood is called placental blood or umbilical cord blood: 'cord blood' for short.
The easiest way to tell indica vs sativa is to look at the leaves. A true sativa is a tall, scraggly looking plant with wiry stocks and thin leaves. In contrast, indica plants are short and bushy. Indica leaves are usually broad and full. Sativas are native to the warm climates of Mexico, Central America, and Southeast Asia.
Sativa marijuana plants. The taller counterpart to the Indica variety is the Sativa variety. This marijuana plant matures more slowly, has increased accessory pigments over Indica, and they have a bit less chlorophyll. This lack of chlorophyll creates a plant that grows more slowly, matures more slowly and requires additional light.