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Vladimir79 [104]
2 years ago
8

*Help* True or false, You can see cells with out a microscope

Medicine
2 answers:
Anon25 [30]2 years ago
3 0

Answer:

Pretty sure its false, i dont think its possible to see cells without a microscope, as they are too tiny to view with just the eye.

Explanation:

Hope this helps! : ) Have a great day!

Iteru [2.4K]2 years ago
3 0

Answer:

I guess no.

Explanation:

hope this helps

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3 years ago
Norepinephrine acts on the heart by _________
Westkost [7]

Answer:

The correct option is : a. causing threshold to be reached more quickly      

Explanation:

Norepinephrine, also known as noradrenalin, is an organic compound, which belongs to the catecholamine family. It acts as a hormone and a neurotransmitter in the brain and the body and also impacts the heart.

It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.

Therefore, <u>Norepinephrine acts on the heart by </u><u>causing threshold to be reached faster.</u>

6 0
3 years ago
According to the National Institute of Health, atrial fibrillation occurs if rapid, disorganized electrical signals causing the
seraphim [82]
Answer:
#1 (it will lower blood pressure because less blood is pumped per beat)
3 0
3 years ago
A 12 year old boy with a history of type 1 diabetes was brough to the er because?
Rashid [163]

Answer:

A 12-year-old boy with a history of type 1 diabetes was brought to the ER because most probably he was experiencing diabetic ketoacidosis, which is a complication of type 1 diabetes.

It is a condition where the body does not produce enough insulin, or the insulin that is produced does not work well.

Explanation:

DKA is caused by too many ketones being released into the bloodstream, which causes the blood to become acidic.

The vomiting,  headache, becoming increasingly lethargic dehydration and breathlessness are the symptoms of DKA.

High blood sugar levels and ketones in his urine are the signs of DKA. DKA is a complication of type 1 diabetes, and it can be fatal. It is caused by high blood sugar levels and dehydration.

#SPJ4

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4 0
1 year ago
With the decision by schools to mandate vaccine does this prevent a parent from living freely? Explain your answer
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Answer:

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Explanation:

8 0
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