Answer:
I believe its a heart attack.
Explanation:
Heart attack: A sudden blockage of the coronary arteries causes scarring in the heart's tissues and decreases how effectively it can pump.
His two major contributions were the classification system and binomial nomenclature.
His classification system had seven levels: kingdom, phylum, class, order, family, genus and species.
For binomial nomenclature, each species is given a genus name then a species name. The genus name is always capitalized and the species name is lowercase.
The answer is D. The last one.
glucose is a chemical compound made of 6 atoms of carbon 6 atoms of oxygen and 12 atoms of hydrogen.
Some processes can't be performed by then, as they are performed in Multicellular organisms like excretion, neural system, hormonal system etc.. otherwise single cell can sustain a life on its own
Answer:
Molecules naturally disperse from areas of higher concentration to lower concentration.
As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.
The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.
These movements require no energy (in the form of ATP) on behalf of the cell.
Explanation:
