The four most abundant elements needed by the human body are carbon, hydrogen, oxygen, and nitrogen because these are needed in large amounts to support our cells, these are referred to as bulk elements.
Oxygen is the most essential element required by our body. The body requires oxygen in the form of gas which is inhaled by the air around us. All the cells in a human body require oxygen which is transported by the blood inside.
Cell is the most basic and fundamental unit of life. It can be of two types: prokaryotic and eukaryotic. Prokaryotic cell is the primitive one with no true nucleus and eukaryotic cell has a true nucleus and all the cell organelles. Generally eukaryotic cells require abundant amount of oxygen.
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<span>A) do you reaction that causes a firework to explore requires less energy just start and occurs more rapidly than the reaction that causes the candle to burn</span>
Answer:
Your answer would be Try and Error!
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When human touch something, nerve impulse travel to and from the brain at a rate up to 350 FEET PER SECOND. Brain is an important organ that receives the message sent by the sensory organs. It regulates the body function. It also plays role in sensation and perception.
Kingdom Protista<span>. NOTE: The current system of classification for eukaryotes has been changed. In 2005, based on new phylogenetic data </span>the kingdom Protista<span> was split into 5 supergroups. ... Protists belong to </span>the Kingdom Protista<span>, which </span>include<span>mostly unicellular organisms that do not fit into the other kingdoms.</span>
