Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
<span>A pine tree is a </span>Angiosperm.
<span>In short, Family history plays a big role in the health of your heart. In Don's case he already have a huge history of high blood pressure which is regardless of his lifestyle choices.</span>
Answer:
The lens with 4x magnification or the lowest power objective
Explanation:
When you use the low power objective, you have a wider field of view. This would make locating the specimen a lot easier than it would be if you used one with a higher magnification. Once you focus the microscope using the low power objective, you can switch to the higher magnification lenses.
Kombucha and root beer are two foods produced in other country using fermenatation.
<h3><u>Explanation:</u></h3>
Kombucha is a very popular Asian drink that is actually a slightly fermented and slightly alcoholic green tea. Black tea can also be used. This gives a sweetened and spicy flavour of the tea along with the refreshment of tea. Its fizzy to taste, and can have several flavorings added to it.
Root beer is a very popular North American drink that is made from the sassafras bark or sarsaparilla. Its very spicy in taste and thick in texture, with the color of beet. It can be alcoholic or non alcoholic.
