Answer:
Explanation:
Oil sand is an unconventional source of oil. It requires specialized technology and great expertise to win oil from associated waste materials.
The reason why some companies bother about such oil source is explained below;
- Prevailing cost of oil in the world market makes it profitable to extract these oil from sands. A high cost of oil crude oil is a good cause to produce oil form oil sands.
- Development of new technology can catalyze interest in profitable exploration from unconventional sources.
- Economic policies can also favor the production of this source of oil.
- Demand for oil in the market can jack up production levels that can also be met by oil from oil sand.
1-2 days before it needs its light for vitamin D
<span>A. Direction of fibers </span><span>
Smooth muscles are also called visceral muscles because they are mostly found surrounding the different organs of the body. These muscles serve as cushion or protections for organs that are mostly found within the abdominal cavity. Unlike skeletal muscles, this muscles move involuntarily, or on their own. They are composed of bundles of specialized cells capable of contracting and relaxing to create movements, like the process of the small and large intestines during digestion, and the function of the rectum during excretion. </span>
1. Embryonic stem cells are pluripotent because they can grow into any type of body cell, but they cannot become totipotent.
Totipotent cells can form all the cell types in a body, plus the extraembryonic, or placental, cells. Embryonic cells within the first couple of cell divisions after fertilization are the only cells that are totipotent. Pluripotent cells can give rise to all of the cell types that make up the body; embryonic stem cells are considered pluripotent.
2. All muscle cells working together to produce working muscle tissue is an example of which theme of biology?
Structure and function
3. Based on the graph what can be concluded about stem cell banking?
The amount of stem cells being banked has increased over the past 25 years
4. Banking stem cells is a very popular practice in science. This is when stem cells, located in the umbilical cord of a birthed infant, are saved and frozen. Why could this be a beneficial practice?
Stem cells are undifferentiated and therefore, could be used to grow into any kind of cell of the body
5. Blood cells are different than nerve cells in how they look and what they do. Why is this, since both of these kinds of cells are found in humans?
The cells have differentiated to perform different tasks within the organism