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olasank [31]
3 years ago
11

What percent of the air consists of nitregon gas

Biology
1 answer:
Zarrin [17]3 years ago
6 0
It is about 78%, I hope that this helped :)
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All of the following contributes to turbulent blood flow except A) when there are irregularities in the vessel wall. B) at high
GaryK [48]

All of the following contributes to turbulent blood flow except  third and fourth heart sounds.

<h3><u>Explanation:</u></h3>

The blood flow in human body is always described to be laminar. Some conditions cause the high flow when there is an ascending aorta. This causes the laminar flow of blood into turbulent. When this occurs the flow of the blood will not be smooth and linear.  

When the kinetic energy in the fluid flow increases the turbulent flow of blood occurs. Both the magnitude and the direction of the flow changes in this type of blood flow. These are caused by the irregularities in the vessel walls, flow rates to ne higher and opening of the valves of the heart.

4 0
3 years ago
why would shuffling genetic material to produce new combinations of characteristics be advantageous to a species?
Radda [10]

Answer:

Suffling of genetic material increases genetic variation in offspring which is important for evolution.

Explanation:

Genetic shuffling or genetic recombination helps in the formation of new trait combinations which increase the genetic variation in the population and this genetic variation is very much important for the evolution of species.

In sexual reproduction, the genetic shuffling occurs during the formation of gametes when the two homologous chromosomes exchange their genetic material with each other. This increase variation in gametes.

Fusion of two different gametes in sexual reproduction also helps in increasing the genetic variation in the offspring.

8 0
3 years ago
Calories from saturated fats and/or added sugars in foods that have little or no nutritional value, such as sausages and ice cre
Viktor [21]

Calories from saturated fats and/or added sugars in foods that have little or no nutritional value, such as sausages and ice cream, are called Empty Calories.

Calories can be defined as the amount of energy extracted from the food which an individual eats throughout the day. According to dietary guidelines, a young person [20-25 years old] must intake between 1,600 and 3,000 calories per day.

Foods such as sausages, ice cream, pizza, and soft drinks have a high amount of empty calories because solid fats and added sugars are used in their manufacturing to add flavors and make the food more appealing but they have no nutritional value.

The amount of empty calories a person intakes should be decreased by avoiding such food items and drinks.

Learn more about Empty calories here

brainly.com/question/750052

#SPJ4

5 0
2 years ago
Quais adaptações evolutivas o grupo das Angiospermas possui em relação aos outros grupos de plantas? Como essas adaptações contr
jolli1 [7]
Uhhh English or español please or por favor
5 0
2 years ago
Describe what normally happens to a persons blood sugar level soon after he or she needs a meal that contains carbohydrates
gavmur [86]
The pancreas detects that the blood sugar level is higher and releases insulin. It tells the liver to store glucose in the blood as glycogen.
This regulates the blood sugar levels
7 0
3 years ago
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