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Shalnov [3]
3 years ago
10

in 1907, Duncan preformed a series experiments in which he attempted to measure the weight of a soul as it left a dying person i

n his experiment McDowell cool place a dying person on a scale and measure their weight immediately prior to the following death. McDowell determined the change and weighed approximately 21 grams for the experiments he concluded the soul exists and has mass what is the fundamental scientific flaw in his conclusions ​
Biology
1 answer:
Luba_88 [7]3 years ago
7 0

Answer:

The flaw is that he is studying pseudoscience (fake science) and he did not repeat his experiments in any form of trials.

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In what form is most of the carbon dioxide present in our blood transported? Group of answer choices As carbon dioxide dissolved
Flura [38]

Answer:

As bicarbonate ions present in blood plasma

Explanation:

Most carbon dioxide produced by tissues (approximately 75%) is transported in the blood to the lungs as bicarbonate ions (HCO₃⁻).

<u>The chemical equilibrium is:</u>

<h3>CO₂ + H₂O   ↔   H₂CO₃   ↔   H⁺ + HCO₃⁻</h3>

                            carbonic acid

In the lungs, the conversion is reversed, so CO₂ diffuses from the blood into the alveoli and then it's exhaled.

Although most CO₂ is reversibly converted to bicarbonte, approximately 5% is simply dissolved in the blood plasma and about 20% is bound with hemoglobin.

This conversion to bicarbonate ions keeps the partial pressure of CO₂ in blood plasma low, facilitating its diffusion away from the tissues.

8 0
3 years ago
an animal carcass had 24 grams of carbon 14 when it was alive and 3 grams when its fossilized remains were discovered how old is
KengaRu [80]
The carbon 14 left from this animal is 3 grams of 24 grams which is: 3g/24g= 1/8 times of its original mass. Then, the age of the animal fossil would be:

final weight= initial weight * (1/2) ^ time/half-live
1/8 initial weight = initial weight  * (1/2) ^ time/half-live
log2 1/8= log2 (1/2) ^ time/half-live
-3= -time/half-live
time= -3 * -(half-live)
time= 3 half-live

If the half-live is 5730 years, the age would be: 3* 5730= 17.190 years.
3 0
3 years ago
Which part of the wave is changed when there is interference?
Mamont248 [21]

Answer:

the amplitude.

Explanation:

The reason why is because an interference is when 2 waves combine to form a wave with a smaller amplitude than either the original wave...It occurs when the crest of one waves overlapes the trough of another wave

8 0
3 years ago
Help please and thank uu​
Anna [14]

Answer:

hfa-epep-uxi

j0!n me pls

I promise there will be nothing inappropriate or unsafe

Explanation:

8 0
2 years ago
Read 2 more answers
Penny writes a word equation to describe photosynthesis. Which of the following is correct?
Papessa [141]

Carbon dioxide + water -> glucose and oxygen

So, the answer would he 'A carbon dioxide and water combine and produce sugar and oxygen'.

Hope this helps! :)

3 0
3 years ago
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