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
Darina [25.2K]
4 years ago
10

Why is topsoil crucial for agriculture

Biology
1 answer:
myrzilka [38]4 years ago
4 0
Topsoil is the most fertile soil layer for plants.
You might be interested in
Match the vocabulary word to it definition
antoniya [11.8K]

Answer: i'm pretty sure that the bottom one goes with the second one on the right

Explanation:

8 0
3 years ago
Read 2 more answers
Is water and its properties important in homeostasis for humans ? explain.
kirza4 [7]

Answer:

yes its important because...

Explanation:

Water is an essential feature of homeostasis in an organism. Water increases the volume of blood, which affects blood pressure and heart rate. Water dissolves gases and allow for efficient exchange and transport of oxygen and carbon dioxide. Water can be excreted, so it carries toxins that have been made water-soluble out of the body.

6 0
3 years ago
What is the name given to the experimental apparatus for generating electricity?
Vesna [10]
The answer would be a galvanic cell
5 0
3 years ago
Identify the type of chemical reaction
prohojiy [21]
A. Decompostion :) :) :) :) :)
3 0
3 years ago
Read 2 more answers
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable me
maksim [4K]

Answer:

The neurons interact with each other at synapse through action potential generated in response to the stimulus. At the resting phase, all the ion channels remain closed and the cell maintains a high amount of Na⁺ ions outside the cell and a high amount of K⁺ ions inside the cell. This difference maintains the membrane potential at -70mv.

When a stimulus activates a cell receptor, it causes the opening of the sodium channels in response to either mechanical stimulus or neurotransmitter released due to stimulus. The opening of the sodium channels leads to the influx of  Na⁺ ions which changes the potential from -70 mv to more positive value. When this change in membrane potential reaches - 55 mv it leads to the opening of the voltage-gated channels which causes an influx of Na⁺ ions. This more influx of  Na⁺ ions leads to depolarization when the membrane reaches above the threshold and the action potential is generated in the neuron.

7 0
3 years ago
Other questions:
  • Which statement describes an advantage of renewable resources​
    7·2 answers
  • Steps in the repair of a bone fracture include (1) bone deposition by osteoblasts, (2) bone and debris removal by osteoclasts, (
    13·1 answer
  • In what era did reptiles become increasingly dominant?
    8·2 answers
  • An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero
    8·1 answer
  • Materials, such as sand and rocks, are constantly being added to land masses through the process of deposition. Deposition occur
    10·2 answers
  • Hurricanes ,How are they formed? Causes
    10·1 answer
  • If I Throw a bowling ball and a tennis ball from a building, describe if one would hit the ground first and why.
    12·2 answers
  • Which statement correctly describes transpires during a chemical reaction?
    9·1 answer
  • My last one ⚠️⚠️
    10·1 answer
  • Are cells specialise by switching on all their genes?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!