Biology
Biology, 30.04.2021 04:10, brittany1903

Two test tubes were filled with a solution of bromthymol blue. A student exhaled through a straw into each tube, and the bromthymol blue turned yellow. An aquatic green plant was placed into each tube, and the tubes were corked. One tube was placed in the dark, and one was placed in direct sunlight. The yellow solution in the tube in sunlight turned blue, while the one in the dark remained yellow. Which statement best explains why the solution in the tube placed in sunlight returned to a blue color? Explain answer? A. Oxygen was produced by photosynthesis.

B. Carbon dioxide was removed by photosynthesis.

C. Carbon dioxide was produced by respiration.

D. Oxygen was removed by respiration.

answer
Answers: 2

Other questions on the subject: Biology

image
Biology, 21.06.2019 20:20, AvantiA
Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o
Answers: 1
image
Biology, 22.06.2019 04:40, testedagent2823
The cluster of developing cells from conception until birth is called an
Answers: 1
image
Biology, 22.06.2019 10:00, Billyr9088
Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.
Answers: 2
image
Biology, 22.06.2019 11:30, mwms2018sg
Discuss cell surface transport in the structure of constituents
Answers: 1
Do you know the correct answer?
Two test tubes were filled with a solution of bromthymol blue. A student exhaled through a straw int...

Questions in other subjects:

Konu
Mathematics, 29.06.2020 15:01
Konu
Medicine, 29.06.2020 15:01
Konu
Chemistry, 29.06.2020 15:01
Konu
History, 29.06.2020 15:01
Konu
Mathematics, 29.06.2020 15:01