Bat's need excellent hearing because without hearing they wouldn't be able to find there way through the DARK cave , cause bats use "eco" to find there way around the cave and without excellent hearing they wouldn't be able to hear there eco and without hearing there eco they bat will not find it's way around
Hope this helps !!! :D
Histamines
Allergens
Antihistamines
The Answer is Allergies
Vaccines is considered to bea controllable risk factors since most people had the power capability to do it (in non-thrid world countries at least), ...
Answer:
Food washing
Explanation: a p e x
The statement "A patient should be instructed to stand 20 feet from the Snellen chart" is true.
Snellen chart is an eye-checking chart that is used to check the power of the eyes if the eyes are alright to see different sizes from different stages.
If more than three lines in the optometrist review improve with the use of the pinhole, the issue may be refractory in nature. If this is not corrected, it is possible to conclude that a disease exists.
A person with normaleyesight can read something at a distance of 30 feet, whereas the patient can do it at 20 feet.
The client should be told by the nurse that "you can read at a distance of 20 feet what a person with normal eyesight can read at 30 feet" in order to make sense of these findings.
Therefore, the statement is true.
To learn more about Snellen chart, refer to the below link:
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