Answer:
e
Explanation:
Salt water does not have a uniform composition and we can divide salt and water by simple physical process of evaporation (by boiling the salt water). Thus, salt water is a mixture, with salt as the solute and water as the solvent. In fact, salt water is a homogeneous mixture and can be termed as a solution
Wound healing is usually prolong in the elderly people due to three basic factors, these are:
1. delayed inflammatory response: inflammatory response allows the white blood cells and nutrient to reach the site of the wound in order to stimulate healing. This response is very slow in the elderly people.
2. reduced skin elasticity: skin elasticity has been highly reduced in elderly people.
3. Diabetes mellitus: most elderly people have diabetes mellitus; the condition prevent wound from healing.
Out of these three, the most important one is the delayed inflammatory response.
Answer:
by providing healthy nutritional source and put them in pure culture
Dr. Blackwell caused rats to stop breathing when he lesioned their MEDULLA.
When doctor Blackwell induced a lesion in the rats' medulla, he discovered that the rats stopped breathing. He explained this observation by saying that the medulla has functional role to play in the breathing process of rats.
