the most common cause of heart diseases is narrowing or blockage of the coronary arteries, the blood vessels that supply blood to the heart itself. this is called coronary artery disease and happens slowly over time. it's the Major reason people have heart attacks.
Biology is the study of living organisms (animals, plants, humans, bacteria, the like) and is divided into numerous different fields of science; behavior, anatomy (the bodily structure of living organisms), morphology (the study of the forms of living organisms), origin, distribution, and physiology (normal functions and activities of living organisms and their parts).
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Species richness increases as we travel southward from the North Pole.
Explanation:
Species richness is at its highest in places near or surrounding the equator and reduces gradually towards the poles. As one travel towards south from the northern pole, the temperate, tropical and equatorial regions will be reached where there is huge diversity of species.
Be it the tropical rain forests, the Amazon forests, or the deciduous forests, they are highly rich in their species population and variety. This is mainly due to availability of favorable conditions like weather, temperature, rainfall, etc which favors their growth and reproduction. Numerous phyla or classes of species can be found in such equatorial belts rather than in the north or the south pole.
Elevation gradient also plays an role in species richness.
Carbon and fluorine combine covalently to form a binary compound. the formula of the compound with the name carbon tetrafluoride is CF4.
Answer: an atom with a charge because it lacks enough valence electrons is called a molecule.
