A B 3 Flask 1 2 3 Flask 1 2 3 (6 7 Treatment water only elodea snails Treatment water only elodea snails CO₂ present no yes yes CO₂ present no (10) yes no 11 (12)
A B 3 Flask 1 2 3 Flask 1 2 3 (6 7 Treatment water only elodea snails Treatment water only elodea snails CO₂ present no yes yes CO₂ present no (10) yes no 11 (12)
Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter3: Basic Hemostasis
Section3.6: D-dimers
Problem 2.2CS
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Transcribed Image Text:Question 7
W
The students performed a new experiment to measure carbon dioxide, instead, and set-up three identical flasks, each with the same amount of water. Flask 1 had only water, flask 2 had only
elodea, and flask 3 had only freshwater snails. All three flasks were wrapped in foil and placed in the dark.
A
Flask 1
Water
Only
Flask 2
Elodea
Only
At the beginning of the experiment, none of the flasks had measurable amounts of carbon dioxide.
Which of the following best predicts the results of the experiment after 12 hours in the dark?
Flask
1
2
Flask 3
Freshwater
Snails Only
Treatment
water only
elodea
CO₂ present
no
yes
acer
0
✓
Transcribed Image Text:B
D
Flask
1
2
3
Flask
1
2
3
Flask
1
2
3
Flask
1
2
3
7
Treatment
water only
elodea
snails
Treatment
water only
elodea
snails
Treatment
water only
elodea
snails
Treatment
water only
elodea
snail
CO₂ present
no
yes
yes
CO₂ present
no
yes
no
CO₂ present
no
no
no
CO₂ present
no
no
yes
Jy
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