Answer:
The answer is option D "All of the above"
Explanation:
Media representation is the act or way of depicting various peoples (such as celebrities, politicians, leaders e.t.c), groups (examples can be family, profession, associations e.t.c), places (such as cities, towns, countries e.t.c) or ideas.
Considering the options or statements given concerning media representation and evaluating all the statements by comparing them with the definition of media representation given above to test weather or not they are true, we will find out that all the statements can be true.
Answer:
Explanation:
Action potential
It is the potential or power or electrical energy required to generate impulses and provides communication between the neurons is called action potential. Normally cell membrane consists of potential is called resting membrane potential() -70mV. The action potential is due to exchange of different ions across the membrane.
Phases of the action potential in a neuron are
i. Depolarization- it is caused by the influx of sodium and calcium ions through the opening of voltage-gated sodium and calcium channels. sodium ion influx is rapid than the calcium ions membrane potential -70mV to +30mV.
ii. Repolarization - It causes the efflux of potassium ions into the cell through the opening of potassium channels. the membrane returning to resting membrane potential.
iii. After- Hyper polarization - in this stage the potassium channels remain open and causes re polarization and comes to normal membrane potential.
The generation of impulses(depolarization) in neuron mainly depends on influx sodium and calcium ions without these ions, no action potential developed and neuron firing does not occur.
If the drugs inhibit these channels, no depolarization, no action potential, no neuronal firing or communication.
The channels involved in an action potential are voltage-gated sodium channels, potassium channels, and calcium channels.
The action potential is required for transmission of information one are to another area in the body.
The responses to different stimuli is due to action potential.
Answer:
proactive
Explanation:
Proactive behavior by an individual in psychology explains that the individual is trying to change behavior by various means i.e by setting future goals to do something to overcome from something, also referred to as self-initiated behaviors. In this example, Bill is trying to initiate a behavior( spending time with family) to deal with the stress he is facing.
C) If A has the capacity to influence the behavior of B, then A is said to have power over B.
