The correct answer is by using the antagonist.
The antagonist is a molecule that blocks a biological response by binding to the receptor. So, you add antagonists to the receptors you want to determine and see which antagonist blocked the response. By blocking the specific response you can get the answer what receptor it was.
Answer: 3. The half- life of the isotope must be long enough to capture the age of the rock. and
4. their should be more than one unstable isotope.
In radioactive dating proces, the parent isotope is in unstable state which undergoes decay process to give stable daughter isotopes. Half-life is the amount of time it takes for half of the parent isotopes to decay. The rock dating requires a long lived parent isotope so that it can capture the exact rock age.
One rock when get decayed in the daughter isotope other will be available identify the age.
Answer:didn’t put the number for how many blue cups were used
Explanation:
The ansseer is Iridium.
The atomic number of iridium is 77 and it comes just before platinum (atomic number = 78).
In iridium,
The number of electrons = no. Of protons = 77.
The no. Of electrons and the no. Of protons is same as atomic number.
Answer:
operates om the principle of temperature-induced resistance.
Explanation:
In physical quantities, the resistance of an electrical conductor can be correlated directly with the temperature of the material. The property for the change in the resistance with temperature is called the temperature coefficient of resistance. Mathematically, the resistance of a material is given as follows:
![R = R_{ref} [ 1 + \alpha (T - T_{ref})]](https://tex.z-dn.net/?f=R%20%3D%20R_%7Bref%7D%20%5B%201%20%2B%20%5Calpha%20%28T%20-%20T_%7Bref%7D%29%5D)
where R = conductor resistance at the temperature T.
Rreff = the conductor resistance at the reference temperature,
= temperature coefficient of resistance
T = Conductor temperature
Treff = reference temperature of the material.
From the equation, it can be seen that a positive coefficient for a material means an increase in the resistance of the material.