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sashaice [31]
3 years ago
14

Pls help i dont understand :( will give Brainliest + 25 points!!

Biology
2 answers:
sertanlavr [38]3 years ago
8 0
It’s the last one
Trust me
IgorLugansk [536]3 years ago
7 0
It’s just a black picture for me what is it
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The respiratory rate times the tidal volume corrected for the dead air space in the lungs is the __________.
pav-90 [236]

Answer:

d. alveolar ventilation rate

Explanation:

Alveolar Ventilation rate (AVR) refers to the rate of airflow that reaches the alveoli which is available for gas exchange with the blood in a given unit of time. AVR is generally calculated as the amount in millimeters of air expired that equilibrates (i.e., exchanges) with alveolar gas per min unit (ml/min). AVR is affected by breathing frequency, tidal volume ( i.e., the normal amount of air between inhalation and exhalation), and the amount of dead space in the lungs.

7 0
3 years ago
Select all items that describe the Amish culture. a. speak Creole or Spanish b. wear simple clothing c. embrace technology d. li
ad-work [718]

Answer:

Simple clothing, living in farming communities and using horse- driven vehicles best describes Amish culture.

Explanation:

The simple clothing concept of Amish culture shows their modesty. The women wear long and simple dresses that goes all the way down to their knees and they also cover their hair. They believe wearing simple dress is a way of keeping their hearts pure.

Amish people use buggy or horse driven vehicles and not cars because they believe that the innovation in technology has the potential to bring assimilation into the surrounding society.

They mostly live in farming communities which are located in Indiana, Pennsylvania, Ohio, Central American and even in Canada.

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3 years ago
What percent of 400 is 72
Vitek1552 [10]
18% of 400 is 72
Hope it helped
3 0
3 years ago
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Which best describes the relationship betwee Evolution and natural selection?
arsen [322]

Answer:

Natural selection leads to evolution.

8 0
2 years ago
Even without being exposed to sunlight, humans exhibit a wide range of skin colors due to differences in the abundance of melano
ivann1987 [24]

Answer:

The stuff that comes from th light and hits you skin which triggers reactions:(

Explanation:

I'm just kidding i have no clue only in 8th grade but i haven't gone over it in class

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