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.
Characteristics of Sativa. The Sativa plant is tall and thin with heights up to 25 feet not uncommon. It requires a great deal of sunshine to produce buds and it best grown outdoors. The odor produced when smoking is grassy in nature. It is an annual and there are both male and female plants. A sativa high provides a boost of energy. Best used during the day, it jump starts the creative process.