A Non-mutagenic factor listed in the options is : ( B ) Drinking water
<h3>Mutagenic factor </h3>
Mutagenic factors are chemical elements or various forms of radiations such as X-rays, UV rays, Sun rays, which may cause a permanent and heritable changes ( mutations ) in the DNA, when exposed to these mutagenic factors.
Hence we can conclude that a Non-mutagenic factor is Drinking water
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To detect predators by using the large size and flexible positioning of the external ears to channel sound waves into the ear canal.
<h3>What is thermoregulation ?</h3>
Mammals regulate their body temperature carefully and independently of their environment through a process called thermoregulation. A method of maintaining a constant internal temperature necessary for survival is temperature regulation.
- Poikilothermy and homeothermy are the two main reactions to changing environmental temperatures (TA) that animals display.
- Progesterone tends to promote heat conservation and higher body temperatures, whilst estradiol tends to increase heat dissipation, and both hormones have an impact on thermoregulation both centrally and peripherally.
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Whole milk will give a biuret positive, Benedict positive, iodine negative and brown paper bag test positive results.
<h3><u>Explanation:</u></h3>
Whole milk is obtained from mainly the dairy animals like cow, Buffalo etc. It contains different ingredients of diet and is considered as an ideal balanced diet for infants.
The Benedict's test is a test to identify the presence of reducing sugars. Milk contains reducing sugar lactose. This is why milk gives Benedict's positive result.
Biuret test also gives positive result because it is a test for protein and milk contains enough of this. The protein in milk is called casein.
The brown paper bag test is a test for lipid and its positive because the milk contains enough lipid. It depends on milk source.
The iodine test is a test for starch and milk isn't a good source of starch. So iodine test isn't positive.
They are known as Secondary Waves. : )
Answer:
Ratio used to describe a change that represents relationship between two values numerically.
Therefore, the correct answer to the question is option A.
Explanation:
Ratio is a relation between two numbers. This relationship is represented numerically. The relationship is not represented graphically or by a picture manner. Also, it is not the relationship which is represented on a scale.
Hence ratio is relationship which is represented numerically. The ratio is defined as a part of something in the whole. By ratio we can also calculate the parts whichever is needed.
