Answer:
Stem cells are primal cells found in all multi-cellular organisms. They retain the ability to renew themselves through mitotic cell division and can differentiate into a diverse range of specialized cell types.
Explanation:
In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing specialized cells.
The answer is c. Adaptation
Adaptation is a physical characteristic that helps an organism survive in an environment. This help them survive in a natural selections.
The examples are :
- cactus that evolved to change its body structure to retain as much water as possible
- Bat that have adapted their hearing to hunt at night
Answer:
Answer: alcoholism and intestinal disorder.
Explanation:
Alcoholism is a situation of taking too much of alcohol. And the effects of exposing the body to excess alcohol are numerous , ranging from liver failure to diabetes, blood pressure, heart attack, irregular heart beat and stroke.
The intestinal disorder include different problems associated with the intestine. These include, constipation , cancer, irritable bowel syndrome among others.
Some symptoms of intestinal disorder are bleeding, pain in the belly, diarrhea and bloating.
In this case, the current condition of the 67 -year- old client is associated to the two options mentioned because of the signs and symptoms she was giving or showing.
<span>When magnesium ribbon is burned,
this produces a white powdery film of magnesium oxide that help visualize a
tool mark, which is usually a dark colored tool. They are used to highlight
details during photography especially in forensic investigation. In addition,
magnesium oxide may be smoked on the surface of an opaque material to form an
integrating sphere and its reference white color is essential in colorimetry,
due to its good diffusing and reflectivity properties.</span>
Answer:
Reticular activating system.
Explanation:
Reticular activating system may be defined as the system containing different nerves stimulation and located in the mesopons. This system interacts with thalamocortical systems and basal forebrain.
The reticular activating system is involved in the resting sleep, dreaming and asleep. The sound of a particular object or living organism play important role in the reticular activating system. The individuals asleep and waking and its regulation is controlled by this system of nervous system.
Thus, the correct answer is reticular activating system.
