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stepladder [879]
4 years ago
10

There are approximately ________ identified and named species.

Biology
1 answer:
IRINA_888 [86]4 years ago
7 0
There are approximately 1.9 million
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How can you reconcile this observation with the cause of death being hypoxia?
Neko [114]
Death by hypoxia can be caused by airway obstruction(strangulation) or poison(cyanide, CO).
In the case, there is a toxicology report saying the victim is poisoned by cyanide. The organ damaged also diffuse and not concentrated. Cyanide works by inhibiting an enzyme in the mitochondria that use oxygen. Therefore, the cells can't oxygen for cellular respiration, cause the tissue die of hypoxia. The oxygen is there but it can't be used. The laboratory report that found high oxygen level in the blood also supports the cyanide poisoning. 
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Contact lens solution is described as a sterile, buffered, isotonic aqueous solution. Explain the importance of the adjectives b
OLEGan [10]

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

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- 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

7 0
3 years ago
A boy is pulling a rope with a force of 300N. His friend is pulling on the rope in the opposite direction with a force of 180N.
liraira [26]
The total net force acting on the rope is 120 because 300 - 180 = 120.
5 0
4 years ago
If something grows,exchanges has, and needs energy but isn’t made of cells and can’t reproduce A it’s dead B it’s living C it’s
lorasvet [3.4K]

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D. It is non-living

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If something is not made of cells, it cannot be alive.

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3 years ago
What is the current theory about the formation of the solar system?
wel

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Explanation: I took the test and I got this answer correct!

5 0
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