PLEASE HELP, THIS IS DUE SOON! In biochemical terms, explain what causes lactic acid buildup. (Your answer must include the words: anaerobic, oxygen, lactic acid, ATP)

Lactic acid builds up in the muscles of mammals due to inadequate oxygen.

During rigorous activities, oxygen supplies become inadequate to generate the necessary energy in the form of ATP from normal aerobic respiration.

Thus, anaerobic respiration is used to supplement the energy needed during rigorous activities.

During aerobic respiration, the presence of oxygen ensures that the 3 steps are complete:

GlycolysisKreb's cycleElectron transport

For anaerobic, only glycolysis takes place and the pyruvate molecules generated are converted to lactic acid. In the presence of adequate oxygen, the lactic acid is converted back to pyruvates which then move into Kreb's cycle.

The 2 molecules of ATP generated from glycolysis are used to supplement the energy needed during rigorous activities.

More on anaerobic respiration can be found here; link

Lguess option c is write

Mantle convection  is the slow  creepingmotion of earth's solid silicate  mantle  caused by  convection  currents carrying  heat from the interior  to the planet's surface.[1][2]  the earth's surface  lithosphere, which rides atop the  asthenosphere  (the two components of the  upper mantle), is divided into a number of  plates  that are continuously being created and consumed at their opposite  plate boundaries. accretion occurs as mantle is added to the growing edges of a plate, associated with  seafloor spreading. this hot added material cools down by  conduction  and  convection  of heat. at the consumption edges of the plate, the material has thermally contracted to become dense, and it sinks under its own weight in the process of  subduction  usually at an  ocean trench.[3]this subducted material sinks through the earth's interior. some subducted material appears to reach the lower mantle,[4]  while in other regions, this material is impeded from sinking further, possibly due to a phase transition from  spinel  to  silicate perovskiteand  magnesiowustite, an  endothermic reaction.[5]the subducted oceanic crust triggers  volcanism, although the basic mechanisms are varied. volcanism may occur due to processes that add buoyancy to partially melted mantle causing an upward flow due to a decrease in density of the partial melt.secondary forms of convection that may result in surface volcanism are postulated to occur as a consequence of intraplate extension[6]  and  mantle plumes.[7]it is because the mantle can convect that the  tectonic plates  are able to move around the earth's surface.[8]mantle convection seems to have been much more active during the  hadean  period, resulting in gravitational sorting of heavier molten  iron, and  nickel  elements and  sulphides  in the core, and lighter  silicate minerals  in the  mantle.