Answer:
A threshold level depolarization.
Explanation:
In a neuron, the action potential threshold is known as the point of depolarization where the neuron fires, when the neuron reaches a point, it will fire and if it does not reach the point of depolarization, it will not fire and it helps to transmit the information to another neuron.
A neuron transmits the information with the help of electric impulses which are sent through its axon. When a neuron in an inactive phase, more +ve charged ions recline outside the axon membrane. In the process of stimulation, the axon membrane admits more Na+ ions and providing the neuron more +ve charge.
Over time, as oxygen levels decrease, CO2 levels increase. Respiration is correct as it uses oxygen as a reactant and releases CO2 as a byproduct.
I'm not 100% sure but I would say watermelon. Watermelon is predominantly water like most melons.
It processes undigested food into feces
When we decide we want to get fitter, first of all, we need to go to a nutrisionist. To some specialists to creates a balanced diet with all the nutrients, we need for our goal. All kinds of diets depend on our age, body type, goal, and lifestyle.
What we all need to know is to exercise, drink a lot of water, sleep well, eat more veggies than fats, and lift weights to create muscle.