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
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.

You might be interested in
Hypothesis: If a higher percentage of people are immune to a disease, then the disease will spread more slowly, because fewer pe
pshichka [43]

Answer:

After six points of contact, fewer people were infected in Trial C than in Trial A. On average, the slope of the graph for Trial C was less than than the slope for Trial A. Infection spread at a slower rate in Trial C than in Trial A. In addition to the ten immune people, three nonimmune people did not become infected.

answer from e2020

3 0
3 years ago
Read 2 more answers
What does trophic level mean in ecosystem
serious [3.7K]
The trophic level is a class of organisms in the food chain.
In a food chain, it starts with the sun, food chains ALWAYS starts with the Sun. The next part of the chain is the producers who use the Sun's energy. The Producers are flowers, grass, and trees. Next, comes the Primary Consumers that eat the producers, they can be grasshoppers, and rabbits. Next animal in the chain is the Secondary Consumer that eats the Primary one, they are foxes and birds. Then, the Tertiary Consumers that eat the Secondary ones, they are snakes and coyotes. And lastly are the Quaternary Consumers that are the top predators. Quaternary Consumers are Hawks, Wolves, Bears and so on. 
4 0
4 years ago
Sahara Desert
kakasveta [241]

Answer:

I would say all three describes the Sahara. Dry, thin soil sounds like sand, which is the soil in the Sahara Desert. This ecosystem definitely has a small amount of rain; that's what defines a desert. Along with that, the Sahara is also very diverse, inhabited by many organisms, from bugs, snakes, and other reptiles to rabbits, jackals, foxes, and even camels. Hope this helps!

6 0
3 years ago
Read 2 more answers
Can someone help me with this question?
ale4655 [162]

Answer:

email ur teacher

Explanation:

teacher know the answer

5 0
3 years ago
What is not a branch of biology
klio [65]

Answer:

Geology

Explanation:

Geology is the study of rocks and the earth and is a different field of science

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why is heartwood darker in color than sapwood?
    9·2 answers
  • The individual whose name is associated with a natural experiment during an outbreak of cholera in london was
    7·1 answer
  • Type the correct answer in the box. Spell all words correctly.
    12·1 answer
  • What is the tip of a chromosome called
    6·1 answer
  • Dramatic biological changes, caused by a cascade of different hormones, that occurs during adolescence is referred to as what?
    7·1 answer
  • If a mutation in a gene allows a protein to function more efficiently, the resulting
    11·1 answer
  • Help plsssssssssssssssss
    10·1 answer
  • Give a positive and a negative impact of an environmental law or regulation.
    10·1 answer
  • The image describes four finch species that live in an isolated ecosystem
    14·1 answer
  • Is the genotype for red hair hom0zygous dominant, heterozygous, or hom0zygous recessive?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!