Answer:
as he goes through puberty, there larynx gets bigger and the vocal cords lengthen and thicken, so his voice gets deeper. And his voice may crack or break
Hope this helps!（づ￣3￣）づ╭❤～
Explanation:
The direction of waves of contraction in the heart are very important because they represent the cardiac contraction pathway. It begins from sinoatrial node due to spontaneous depolarization (nodal cells) and triggering of action potentials and transmission of the same to the cardiac cells taking part in the conduction pathway in the cardiac muscle fibers.
The blood flows from the right atrium to the right ventricle via the tricuspid valves when the atrium contracts and ventricles expand. Once the ventricles receive its full amount of blood the tricuspid valves shuts to prevent any backflow of blood into the atrium. When the ventricles contract, blood enter the aorta through the aortic valve.
Iron is an important mineral required by the body to produce the ‘heme’ part of the protein hemoglobin present in the red blood cells of the blood. Oxygen binds with hemoglobin and is carried via blood to various parts of the body. Hence intake of recommended dietary allowance of iron is very important since deficiency can lead to various conditions like anemia.
Polycythemia vera is a condition which leads to increased production of red blood cells. this increases the blood volume and thickens the blood and slows down the blood flow and causes blood clots. The slowness of blood flow and formation of blood clots can lead to heart failure and heart attacks respectively.
Answer:
The public often ends up underestimating common risks and exaggerating low risks.
Explanation:
Answer:
I think social media
Explanation:
because if you give up electronics social medias already down and out the window if you keep electronics you still can watch movies on TV signal and play video games such and such order things on Amazon if you keep electronics so I think give up social media
Answer:
Sensory adaptation.
Explanation:
Sensory adaptation, also called neural adaptation, refers to a phenomenon that occurs when the sensory receptors become less sensitive to stimuli after constant exposure to it by increasing or decreasing the ability to respond, and depending on the stimulus, the sensitivity will increase or decrease. This helps us focus our attention and resources to other stimuli in our surroundings. This happens to all five of our senses: taste, touch, smell, hearing, and sight.
