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
HACTEHA [7]
3 years ago
12

Why are two photosystems necessary?

Biology
2 answers:
juin [17]3 years ago
5 0
<em>they are necessary because these systems absorb energy from the photon and then conserve the energy in the transfer of electrons .. single photosystem cannot carry out the transfer because of absorbing low amount of energy ..</em>
Black_prince [1.1K]3 years ago
4 0
A single photosystem can't provide enough energy for the electrons it transfers its energy to.
You might be interested in
¿Qué áreas del conocimiento me pueden <br> aportar a la ejecución del proyecto? para un huerto
tensa zangetsu [6.8K]

Answer:

Conocimientos que pueden resultar muy útiles al momento de planificar un huerto:

- biología vegetal (características de las plantas que queremos producir)

- agronomía (características del terreno utilizado)

- condiciones ambientales (meteorología), como así también la disposición del lugar

Explanation:

Para iniciar un huerto en casa es necesario tener en cuenta una serie de factores que pueden influenciar en gran medida el éxito del proyecto:

-Tener en cuenta las características de las plantas que queremos producir es fundamental para lograr un óptimo crecimento. Por ejemplo, plantas que no resisten las heladas podrían morir en ciertas regiones, con lo cual las plantas deberían encontrarse en estos casos protegidas durante su desarrollo (por ejemplo, mediante un invernáculo).

- Buscar lugares bien iluminados. La presencia de luz es un factor fundamental para el crecimiento de las plantas.

- Riego y/o precipitaciones: tener en cuenta las necesidades hídricas de las plantas que queremos producir.

- Suelo: utilizar tierra abonada suele ser la mejor opción para brindarle a las plantas la mayor cantidad de nutrientes y así garantizar un óptimo crecimiento. En el caso de usar macetas, la presencia de huecos o el uso de vermiculita puede ser de gran ayuda para permitir la escorrentia del agua.

- Espacio: es necesario tener en cuenta el espaciado entre plantas para que puedan crecer normalmente.

-Tener en cuenta las plagas (insectos, nemátodos, etc) que podrían afectar el crecimiento de las plantas.

4 0
3 years ago
After incubation, you observe that your streak-plate has heavy, uniform growth but no isolated colonies. Which of the following
Vadim26 [7]

Answer:

Option 3 and 4 are most likely correct

Explanation:

<em>Option 3</em>: We know that area 1 would contain heavy streaking and not single colonies. Therefore, if the loop crosses area 3 and enters area 1, it will definitely result in heavy streaking again.

<em>Option 4</em>: We always need to sterilize properly the loop when streaking in different areas. If we don't do it, it is possible that the loop contains a lot of bacteria that would be streaked again.

Options 1 and 2 are incorrect because, according to question, there is a uniform growth but no isolated colonies. So, contamination or mixed culture would not produce uniform growth streaking rather mixed with other bacterial types.

3 0
3 years ago
Why does summer receive more daylight hours than winter?
spin [16.1K]
A. The hemisphere of the Earth is tilted more toward the Sun.
3 0
3 years ago
Read 2 more answers
As blood pressure increases and the hearts is working harder the most vulnerable arteries area? Located near the heart, because
KIM [24]

As blood pressure increases and the hearts is working harder the most vulnerable arteries area are those <u>Located near the heart, because they are absorbing the most shock.</u>

<u></u>

Explanation:

When the heart pumps blood, the highest pressure is felt close to the heart. This is why the aorta, the artery that carries blood away from the heart is made up of thick walls to withstand this pressure, otherwise, these vessels would rupture. Away from the heart, this pressure lessens, and the blood vessels are not so thick-walled.

Learn More:

For more on structure of arteries check out

brainly.com/question/2700868

brainly.com/question/1686670

#LearnWithBrainly

8 0
3 years ago
Question in picture
zepelin [54]
Pretty sure it’s convection
7 0
3 years ago
Other questions:
  • Utilizing ultisols for agriculture requires _______.
    6·2 answers
  • A decrease in the oxygen-carrying ability of the blood, for any reason, is a condition known as ________.
    5·1 answer
  • What type of energy is made during photosynthesis
    6·2 answers
  • What is the effect of washing hen's eggs?
    5·1 answer
  • Do all the red flowers have the same chemical components (pigments). Investigate if the pigments are different or similar in dif
    7·1 answer
  • The similarities of a birds wing and an insects wing are evidence of what.
    7·1 answer
  • ___________ control all chemical reactions including metabolic processes like photosynthesis and cellular respiration
    10·1 answer
  • An example of a density dependent limiting factor is...
    7·1 answer
  • Relate Cause and Effect
    12·1 answer
  • How do the roles fulfilled by the males increase the survival of the species?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!