1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arada [10]
3 years ago
6

Two test tubes are filled with a solution of bromthymol blue. A student exhales through a straw into each tube, and the bromthym

ol 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.
Biology
1 answer:
amid [387]3 years ago
8 0

Answer:

The correct answer is oxygen was produced by photosynthesis.

Explanation:

During the process of photosynthesis carbon dioxide is consumed and oxygen is released in presence of sunlight.

    when plant is placed in the yellow solution and kept in sunlight the plant undergo photosynthesis.As a result the yellow solution in the tube in presence of sunlight turns blue because oxygen is released by reduction which is responsible for the blue coloration of the solution.

  On the other hand the plant that is placed in dark unable to undergo photosynthesis due to which there is no change in color.

   

You might be interested in
Biological processes that systematically vary over a 24-hour cycle are called _____ and are regulated by a cluster of neurons ca
Snowcat [4.5K]

Biological processes that systematically vary over a 24-hour cycle are called circadian rhythms and are regulated by a cluster of neurons called the suprachiasmatic nucleus.

<h3>What is the circadian rhythm?</h3>

The circadian rhythm refers to the biological process regulated by the duration of a calendar day, which is common for many organisms ranging from animals to plants.

The circadian rhythms enable the maintenance of homeostatic control of physiological functions and thus perform metabolic activities.

In conclusion, biological processes that systematically vary over a 24-hour cycle are called circadian rhythms and are regulated by a cluster of neurons called the suprachiasmatic nucleus.

Learn more about the circadian rhythm here:

brainly.com/question/4095233

#SPJ1

6 0
2 years ago
What process involves the introduction of recombinant DNA plasmids into a bacterial colony?
Art [367]

Answer:

Transformation

Explanation:

3 0
3 years ago
Fungi _____ their own food outside their own bodies and then absorb it
lapo4ka [179]
Absorb? tell me if im wrong.

4 0
3 years ago
Read 2 more answers
As a mollusk the animal probably has
andrezito [222]

As a mollusc, the animal probably has a mantle and a radula.

Molluscs are aquatic species that belong to the phylum of Mollusca. Mollusca is one of the biggest and most diverse phyla of the sea.  

A mantle is a term that describes the fold in their body which secretes the hard protective shell of their body. A radula is a toothed structure (similar to the tongue) used to collect food.

mark brainliest  :)

6 0
3 years ago
Risk factors for brain abnormalities in people with schizophrenia include low birth weight, maternal diabetes, _____, and oxygen
VikaD [51]
Include low birth weight, maternal diabetes, older paternal age,
7 0
3 years ago
Read 2 more answers
Other questions:
  • Recent genetic research indicates that ____ or more individuals are needed for an endangered species to maintain its capacity fo
    7·1 answer
  • If the frequency of homozygous dominant is 60%, the frequency of heterozygous is 20%, and the frequency of homozygous recessive
    11·1 answer
  • What creates seasons ?
    11·2 answers
  • Regulation of gene expression during the phage lytic cycle does not include
    10·1 answer
  • The main difference between prokaryotic and eukaryotic cells is that
    11·1 answer
  • I don't know what subject this is
    15·1 answer
  • The cell bodies of autonomic motor neurons are located in the
    9·2 answers
  • How might genetic drift be important in managing an endangered species?
    12·1 answer
  • Which of the following is NOT associated with a
    8·1 answer
  • In what way is the genetic code in all organisms the same?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!