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
adell [148]
3 years ago
5

Why is the phosphorus cycle not considered as a real cycle?

Biology
1 answer:
gavmur [86]3 years ago
3 0

The phosphorous cycle is not considered a true cycle because unlike the others such as the water, carbon, nitrogen and sulphur cycles,  it does not include a gas phase, although small amounts of phosphoric acid may make their way into the atmosphere contributing , in some cases, to acid rain.

Very little phosphorous circulates in the atmosphere because at Earth's normal temperatures and pressures, phosphorous and its various compounds are not gases. The largest reservoir of phosphorous is in sedimentary rock.

You might be interested in
Name two substances in the body that will move based on the principles of diffusion
Nina [5.8K]
Hello there!

The principle of diffusion consists in the movement of substances through a membrane from a zone with high concentration, to a zone with low concentration, until the concentration is equal on both sides of the membrane. 

An example of diffusion is the process that happens when we breathe. Two substances in the body that will move based on the principles of diffusion are Carbon Dioxide and Oxygen. Carbon Dioxide will move from the bloodstream to the alveoli, and Oxygen will move from the alveoli to the bloodstream. 
6 0
2 years ago
Porque un grupo de celulas pequeñas ayudarian a un organismo a mantener la homeostasis mejor que una celula grande?
NeX [460]

Answer:  

Una parte fundamental de la homeostasis es la transferencia y la ingesta de moléculas (sea necesario o no). Es importante que la célula pueda llevar los nutrientes necesarios inmediatamente donde los necesita y poder deshacerse de los subproductos dañinos del proceso celular. Es igualmente importante poder regular la concentración de agua. Las células más pequeñas tienen una superficie más grande en relación con su volumen (su superficie se escala con R ^ 2 mientras que su volumen con R ^ 3 donde R es el radio de una célula) y, por lo tanto, los intercambios a lo largo de la membrana celular se ven favorecidos en comparación con las células más grandes que necesitan muchos intercambios pero tienen proporcionalmente menos área de membranas. Si bien A no es necesariamente cierto, C es definitivamente cierto y, por lo tanto, la respuesta correcta.

5 0
2 years ago
During which part of the rock cycle does weathering and erosion take place? (So what happens before weathering and erosion) plea
inn [45]
There are two main<span> types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.</span>
5 0
3 years ago
How does the addition of a catalyst affect the energy of activation of a chemical reaction
nydimaria [60]
By lowering the activation energy, it helps the reaction go faster.
7 0
2 years ago
Why dis gregor mendel study pea plant
exis [7]
<span>Gregor Mendel conducted hybridization experiments on around 29,000 pea plants. Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate them.</span> He studied pea plants <span>because the are self pollinating , they grow fast , and they have many traits.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is a phase of mitosis?
    11·1 answer
  • Which of the following sets of indicators of sustainability is significantly higher in North America than other regions of the w
    5·1 answer
  • Would it be<br> A <br> B<br> C<br> D <br> only if you actually know it!
    14·1 answer
  • Why is it important that the cellâs dna is duplicated before cell division?
    6·1 answer
  • Which of the following correctly describes a way in which Earth’s atmosphere interacts with the geosphere?
    15·1 answer
  • Which situation allows evolution doing gene duplication
    12·1 answer
  • (1) Use complete sentences to explain the advantage of using binomial nomenclature in the system of classification. Also explain
    9·1 answer
  • In which layer of the atmosphere did the Concorde cruise?
    13·1 answer
  • 3. What 3 ions play a crucial role in muscle contraction? (3 pts)
    15·1 answer
  • Girlcome 5324611502 p-here​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!