Lactic acid fermentation occurs in muscle cells when levels are low. When builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the of muscle cells, where it is broken apart for its energy. HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight

Oxygen, Lactic acid, liver, mitochondria

Explanation: Lactic acid fermentation occurs in muscle cells when OXYGEN levels are low. When LACTIC ACID builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the LIVER and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the MITOCHONDRIA of muscle cells, where it is broken apart for its energy.

corona the outer atmosphere of the sun, temp. may reach 2,000,000 c

chromosphere middle layer of the sun's atmosphere

photosphere visible surface of the sun

convection zone layer of the sun which energy travels by convection from the radiative zone to the photosphere

radiative zone layer of the sun which energy is transferred away from the core by radiation

core very dense center of the sun

nuclear fusion process by which tow or more low-mass atomic nuclei fuse to form another, heavier nucleus.

radiation when energy is transferred as electromagnetic waves

convection the process in which heat is transferred by the circulation or movement of matter

differential rotation the way the sun rotates, rotating faster at its equator than at higher latitudes

sunspots dark areas that form on the surface of the sun

solar flare an explosive release of energy that can extend outward

prominences huge loops of cool gas that extend outward from the photosphere

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.