Answer:
Explanation:
main compounds- "Acid anhydrides, Acyl halides, Alcohols, Aldehydes, Alkenes, Amides, Amines, and Aromatics."
"Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides."
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.
The two kingdoms are Animalia and Fungi
Answer:
Commensalism
It is a +/0 population interaction.
<span>Logical conclusions based on careful measurements are likely to be correct.</span>