![subject](/tpl/images/cats/biologiya.png)
Biology, 09.12.2019 21:31 jordynnmarelich1194
Two test tubes are filled with a solution of bromthymol blue. a student exhales through a straw into each tube, and the bromthymol blue turns yellow. an aquatic green plant is placed in each tube, and the tubes are corked. one tube is placed in the dark, and the other tube is placed in direct sunlight. the yellow solution in the tube in sunlight turns blue, while the one in the dark remains yellow. which statement best explains why the solution in the tube placed in sunlight returns to a blue color?
question 11 options:
oxygen was produced by photosynthesis.
oxygen was removed by respiration.
carbon dioxide was removed by photosynthesis.
carbon dioxide was produced by respiration.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:30
Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:50
Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
Answers: 3
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 09:00
The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation
Answers: 1
You know the right answer?
Two test tubes are filled with a solution of bromthymol blue. a student exhales through a straw into...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.12.2020 20:00
![question](/tpl/images/cats/mkx.png)
Arts, 28.12.2020 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 28.12.2020 20:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 28.12.2020 20:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.12.2020 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 28.12.2020 20:00
![question](/tpl/images/cats/ekonomika.png)
Business, 28.12.2020 20:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.12.2020 20:00
![question](/tpl/images/cats/en.png)
English, 28.12.2020 20:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.12.2020 20:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.12.2020 20:00
![question](/tpl/images/cats/biologiya.png)
Biology, 28.12.2020 20:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.12.2020 20:00