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sergey [27]
2 years ago
5

In the mid ____________ , ____________ was the first surgeon to introduce aseptic techniques into the operating room in an effor

t to reduce microbes and prevent infection.
Biology
1 answer:
svp [43]2 years ago
5 0

alantic and Semmelweis was the first

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Hypothesis A: If heart rate is related to caffeine intake, then coffee drinkers will have higher heart rates.
Katen [24]

Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.

Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

3 0
3 years ago
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I don’t understand this question can y’all please help
Fofino [41]
New disease that affects the younger of a population, shortage of availability of food, new competitor for food, new predator of jaguars (though there arent many of those)
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3 years ago
10 POINTS !!!!!!!!!!!!!!!!!!!!<br> ANSWER!!!!!!!!!!!!!!!!!!!!!
JulijaS [17]

Answer:

The answer is 8

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4 0
3 years ago
During volume changes in the thoracic cavity, what is primarily responsible for changes in length?.
rusak2 [61]

During volume changes in the thoracic cavity, <u>Diaphragm</u> is primarily responsible for changes in length.

The main components of the respiratory system are the two lungs. They are located in the thoracic cavity, which is the area to the left and right of the heart. The rib cage safeguards the cavity. Other components of the respiratory system are supported by a muscular sheet known as the diaphragm.

The diaphragm contracts and pulls downward upon inspiration, or when the lungs inhale. The muscles between the ribcage tighten and pull upward at the same time. As a result, the pressure inside the thoracic cavity lowers and its size grows. Air rushes in as a result, filling the lungs.

Thus, diaphragm is responsible for the increase in length of the thoracic cavity.

To know more about thoracic cavity visit the link:

brainly.com/question/1395419?referrer=searchResults

#SPJ4

4 0
9 months ago
Which best matches the description with the genetic material? a. Nucleotides form a helical structure that is called a gene. b.
MAXImum [283]
DNA is the main type of genetic material found in a cell. In addition, it is found in the nucleus of the cell, so (D) is correct. DNA in the nucleus is used in replication (through mitosis and meiosis) via daughter cells to continue cell growth.
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3 years ago
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