Which of the following could most quickly reverse calmodulin activity ?

Rapid uptake of Ca2+ ions from the cytosol into mitochondria.

a monomeric GTPase

Activation of a plasma membrane voltage gated sodium ion channel.
Activation of a plasma membrane potassium ion channel.
Increased synthesis of calmodulin.

Option-(B): The activation of a plasma membrane voltage gated sodium ion channel, leads to the process involving reverse calmodulin activity inside the muscles cells.

As, the required number of energy is required for each break to bind the different proteins and other elements with one another in a proper sequence in order to have the activities inside the body.While, the enormous number of cross bridges are there inside the muscle cells to enhance its abilities to attain a proper position inside the space for a having the different chemicals in a more balanced level.As, we have heard of the balance been created between the different inside the human body to attain equilibrium, which is all due to termination of a certain process while initiation of another in the same space or system.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.