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3 years ago

9

Mark's dentist gives him a shot before performing a root canal.The dentist says the shot is anesthesia and mark won't feel any p

ain. Mark feels his gums going numb, while the rest of his body is working fine. What has the anesthesia actually done?

1 answer:

s344n2d4d5 [400]3 years ago

4 0

Answer:

The anesthesia has deaden the nerves in the tooth so no pain will be felt.

Hope this helps.

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Which statement about fluid pressure is true?

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Answer:

it is b

Explanation:

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3 years ago

A study was conducted in men aged 40-70 in order to determine whether exercising for 2 or more hours per week decreases the like

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Answer: alternative A.

Explanation: In this case, we will consider people that already have had a heart attack. In this specific group of 1,000 people, 236 exercised regularly and had gone through this situation.

We can infer that 23.6% of people who exercised regularly have experienced that by dividing 236/1,000= 0.236= 23.6%.

If 236 people exercised, 1,000-236=764 didn't exercise regularly prior to their heart attacks, so 74.6% were considered to be sedentary.

If there's 0.236 chance out of 1 to exercise and still have a heart attack compared to 0.764 out of 1 to be sedentary and have the same experience, we can divide both ratios to compare them, so 0.236/0.764= 0.3089.

Alternative A claims that people who exercise have around 0.5 chance of having heart attacks compared to people who don't. Since our ratio resulted in 0.3089, we consider this number the closest to 0.5. Alternative <u>B is absurd because in order for people who exercise to have 2x the risk compared to people who don't, the number of people who exercised and went through that must be 2x bigger than people who didn't</u>. Alternative <u>C doesn't apply as well, because we already verified that the chance people who exercise have a heart attack equal to 23,6%. </u>

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Why have plants evolved ways to prevent self-fertilization? Why do you cross-fertilization (plant to plant) more beneficial to t

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It might be because making it a hybrid could help get nutrition and other things it needs. I don't know exactly though

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usaha yang dilakukan nabi Muhammad Saw agar kaum muslimin tetap aman dari siksaan kaum Quraisy adalah...

Molodets [167]

Answer:

memerintahkan kaum muslimin untuk hijrah ke habasyah(Ethiopia)

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10 laki lakin dan 5 perempuan yang hijrah ke habasyah dibawah komando ustman bin affan, termasuk istri ustman bin affan yaitu rukyah binti muhammad

-kemudian, pada rombongan ke dua, ada sekitar 81 orang, yang terdiri dari 80 laki laki dan 1 perempuan. perempuan tersebut adalah ummu habibah yang merupakan istri dari abu sofyan

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3 years ago

What could a scientist do to determine what era the Eocene Period belongs to on the geologic time scale?

Burka [1]

Answer:

Option B) study information related to the Cenozoic era

Explanation:

The complete question is

Scientists discovered that the Eocene time period existed in Earths history around 34 MYA. What do they need to do to determine what time period Eocene belongs to on the geologic time scale?

A) learn what happened during Precambrian time

B) study information related to the Cenozoic era

C) view the timing of events in the Mesozoic era

D) research events that happened during the Paleozoic era

Solution -

The period of Eocene belong to the Cenozoic era. The Cenozoic era is divided into three periods-

a) The Paleogene – Existed between 65.5 to 23.03 million years ago

b) The Neogene - Existed between 23.03 to 2.6 million years ago

c) The Quaternary – Started some 2.6 million years ago and is continuing till present

The Paleogene is subdivided into three epochs –

A) The Paleocene – existed between 65.5 to 55.8 million years ago

B) The Eocene – existed between 55.8 to 33.9 million years ago and

C) The Oligocene – existed between 33.9 to 23.03 million years ago

Hence, studying about Cenozoic era will give information about the Eocene epoch

Hence, option B is correct

5 0

3 years ago