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Anvisha [2.4K]
3 years ago
15

Which statement is true about two atoms of carbon that have the same number of neutrons?   A. They are the same isotope.   B. Th

ey have a different number of protons.   C. They have different number of neutrons.   D. Their atomic numbers are different.
Biology
1 answer:
andre [41]3 years ago
3 0

Answer:

A

Explanation:

the point of difference in isotopes is the number of neutrons. since they have the same number of neutrons, they are the same isotope.

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Which statement indicates that the patient who is taking an adrenergic-blocking drug understands the importance of avoiding othe
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Answer:

Answer is 2,  "I should avoid drinking my morning coffee while taking this drug".

It should be noted that, the question is incomplete, because the options were not included. But, the likely options are,

1

"I should limit my fluid intake while taking this medication."

2

"I should avoid drinking my morning coffee while taking this drug."

3

"There's no need to stop eating chocolate while I'm on this medication."

4

"One glass of red wine with meals will not interfere with the medication."

Explanation:

Adrenergic - blocking drugs are also known as beta blockers. They are drugs or medicines used in treating or preventing high blood pressure, irregular heart beat, heart attack among others.

The activities of these drugs make the heart to beat slowly with less force, thereby lowering the blood pressure. Examples of these drugs are corgard, visken, atenolol, labetalol among others. These drugs might show side effects like weakness, headache, dizziness etc.

In this sense, Food items containing caffeine, like coffee, should be avoided when taking the drugs , because, caffeine affect the work of beta blockers in the body.

6 0
3 years ago
What might happen to the human heart during a trip to Mars?
bogdanovich [222]
<span>Because the atmosphere is thinner, there would be less pressure keeping the heart at its current size and it would expand and become too large to work properly</span>
5 0
2 years ago
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A serial dilution is performed on a culture of Saccharomyces cerevisiae (Brewer's yeast). A 1:10 dilution was performed in serie
Karo-lina-s [1.5K]

Answer: CFU/mL = 14200 CFU/mL

Explanation:

Microorganisms are very small and difficult to count directly. Instead, a laboratory technique is used to count CFUs (Colony Formation Units). This involves making dilutions of a microbial suspension and spreading it on thin layers of agar containing nutrients for growth in Petri dishes also called agar plates. After incubation under ideal conditions, some plates are completely covered with microbial growth; some have little or no growth; and some are covered with individual isolated "spots", which are microbial colonies. Since a colony may consist of a single organism or a group of microbes, the dots represent a CFU.

To calculate the viable count of the stock culture, you have to count the number of colonies, multiply by the dilution and the result will be the plate count in CFU.

So, the equation is:

CFU/mL = Number of colonies / (Volume trasferred to plate x dilution blank)

100 microliters = 0.1 mililiter

1/10 = 0.1 (dilution factor)

Replacing the information from the question:

CFU/mL = 142 / (0.1 mL x 0.1)

CFU/mL = 14200 CFU/mL

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What is the role of wax to an organism?
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