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MA_775_DIABLO [31]
3 years ago
7

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of

algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light.If you ran the same experiment without passing light through a prism, what would you predict?A) There would be no difference in results.B) The bacteria would be relatively evenly distributed along the algal filaments.C) The number of bacteria present would decrease due to an increase in the carbon dioxide concentration.D) The number of bacteria present would increase due to an increase in the carbon dioxide concentration.E) The number of bacteria would decrease due to a decrease in the temperature of the water.
Biology
1 answer:
Savatey [412]3 years ago
4 0

Answer:

The correct answer will be option-B

Explanation:

Theodor Engelmann performed the experiment to study the relationship between the production of oxygen in response to the wavelength of light. This was observed by the congregation of the bacteria in the red and blue wavelength.

In the given condition, if no light is passed through prism then the bacteria will not be accumulated in a particular area instead will be evenly distributed as the algae will produce the oxygen evenly and the concentration is not high in any particular area.

Thus, Option-B is the correct answer.

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Protozoans are the only organisms that can convert nitrogen from the air into chemical compounds that plants can use.
tigry1 [53]

Answer: False

Explanation:

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These are bacteria and archae that fix nitrogen gas found in the atmosphere into more usable form such as ammonia.

These organism can grow without any external source of fixed nitrogen. Example: Rhizobia and azospirillium.

5 0
3 years ago
Primary features of a long bone. Which of the following correctly pairs the structure at C with its primary component?
OlgaM077 [116]

Answer:

periosteum ----> dense irregular connective tissue

Explanation:

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The periosteum consists of two layers-

    1. Outer fibrous layer

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4 0
3 years ago
ANSWER ASAP PLZ. THANK YOUUUUU
Oliga [24]

Answer:

b

Explanation:

i took the test

6 0
2 years ago
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What two components are often found as part of an enzyme?
alukav5142 [94]
Two components that are very common and often found are:
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</span>Hope this helps you greatly
7 0
3 years ago
As a child, Alex was short for his age. But during his teenage years, his height increased and he surpassed most of his friends.
Vladimir79 [104]

Answer:

B. Cells in Alex’s body underwent mitosis to create new tissue

Explanation:

Mitosis is the cell division that forms two genetically identical daughter cells from one parent cell. It occurs in somatic cells and is responsible for the growth and development of individuals.  

Alex gained the height as the cells in tissues of his body underwent the mitosis and produced new daughter cells. Repeated cycles of mitosis added a large number of new cells to his body to form new tissues in his body parts and caused an increase in his height.  

6 0
3 years ago
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