Answer:
The correct answer is - Control microcosms did not contain living moss, while experimental microcosms did contain living moss.
Explanation:
The difference between the control microcosms and experiment Microcosms is, the presence of the living moss in the experimental group whereas the control group does not contain living moss.
The independent variable in this research setting is the presence or absence of the living moss and for the control group, the mosses are filtered out and only added the water.
Answer:
Option (c) is the correct answer.
Explanation:
It is known that if we have to convert temperature from kelvin to degree celsius then we have to subtract 273 from the given value of temperature.
Whereas when we have to convert temperature from degree celsius to kelvin then we have to add 273 in the given value of temperature.
Therefore, convert value of 200 Kelvin in the Celsius scale of temperature as follows.
Temperature = (200 - 273) degree celsius
= - 73 degree celsius
Thus, we can conclude that value of 200 Kelvin in the Celsius scale of temperature is - 73^{o}C.
Answer:
Neurotransmitters are released
Explanation:
At a neuromuscular junction, action potential that arrives there causes the release of the acetylcholine into the synapse. This then binds to the receptors that span across the surface of the motor end plate triggering muscle contraction with the release of calcium.
It acts as a transmission passageway for action potential between the end of a motor nerve and a muscle.
The difference in concentration of hydrogen Ions between pH5 and pH6 is - x 10.
The pH scale is a scale or measure to find the strength of acidity or the basic nature of a solution or substance. pH 1 is acidic and pH 14 is the most basic on the scale.
- The concentration of hydrogen ions is inversely related to its pH
- More hydrogen ions present, the lower the pH
- The fewer hydrogen ions, the higher the pH We know,
pH = -log(H+) then,
=> 5 = -log (H+)
=> H+ = 
(for pH = 5)
=> pH = -log(H+)
=> 6 = -log (H+)
=> H+ = 
(for pH = 6)
Thus, The substance with the lower pH (5) has 10 times as many hydrogen ions per volume of water.
Learn more about the pH scale:
brainly.com/question/1596421
