The right answer is The first image (the left one).
An atrium is an upper cavity of the heart, delimited by a thin wall, receiving blood from the bloodstream. There are two in the human heart, they allow the passage of blood from the veins (cellars and lungs) to the ventricles (right and left).
In its upper part (near the entrance of the superior vena cava) is located the sinus node, microscopic structure from which the electrical impulse which ensures the contraction of the heart (especially atrium) ...
The depolarization of the action potential is conducted step by step in the cells of the right and left atria, accompanied by a contraction of the muscle fibers.
Answer:
its a sign of your body's natural fight against an affection
Explanation:
hope this helps:)
Yes, a snake is a consumer.
Answer: Ok so for the first one pipette aid, pipette tips, standard/ladder, samples with dye, ethidium bromide, plastic pipette, gel box, and gel box aid. <--- These are the ingredients Ok now to answer the second question: Why do you need to use a buffer? Ok answer: Buffer is a solution that can resist pH change upon the addition of an acidic or basic components. For the FINAL QUESTION!!!! I can't answer why you need a microwave but Yes you can use something else such as the oven!
If you have time will you mark me brainliest? If not that's ok a simple thanks will do!!!! :) ~~Night
