Answer: The fat has a lower density than the other parts of the milk.
Explanation:
Milk is a dairy product which is produced by the mammary gland of mammals such as cow, goat, pigs and even human beings used for the nourishment of their younger ones. Milk gotten for cow is usually processed and consumed by man. It's constituents includes the following:
-> water,
-> lactose
-> fat
-> protein and
-> minerals.
The fat component of milk can be separated by simply allowing the fresh milk to stand for a period of time and the top layer of fat removed. This is possible because fat has a lower density than the other parts of the milk. In the dairy processing, when fresh milk is allowed to stand for a period of time, the fat globules would begin to rise to the surface in a phenomena called creaming.
Answer:
Complete one revolution.
Explanation:
The earth completes one revolution around the sun in a year. Not to be confused with rotation. Rotation is when the Earth rotates about its axis.
Anything from virus vaccines, insecticide or even some of the food we eat (such as corn, soy beans, plums) have been Genetically modified with some sort of fish genes.
An organisms phenotype is the way it’s genotype is expressed
A contact lens is a lens placed on the cornea of the eye.
Importance of buffers in contact lens products:
Buffers: They aim to keep the pH of the solutions at values between 6.6 and 7.8 in order to maintain the lens parameters and the effectiveness of the solutions. They are made by the combination of an acid and its sodium salt (phosphate and acetate for example). Borate and citrate buffers are used.
Importance of isotonicity in contact lens products:
The solution composed by isotonic saline solution.
Isotonia is expressed by osmolarity or cryoscopic lowering
- 0.236 to 0.446 mOsmoles / l (increases during the day)
- If the osmolarity of the mixture is different from that of the tears, it causes discomfort and irritation
• Increased tear secretion
• Increase the blink frequency
- If hypotonia, entry of water to the epithelial cells, if hypertonia: inverse
- Osmolarity restored 1 or 2 minutes after instillation
