Cellular respiration allows organisms to release the energy stored in the chemical bonds of glucose, c6h12o6. the energy in glucose is used to produce atp, which cells use to supply their energy needs. during aerobic cellular respiration, oxygen is reduced and is produced as a by-product of this specific intermediate reaction.

the answer is water

explanation: its water because The transformation of oxygen into water is done at the level of the mitochondria in a process called oxidative phosphorylation.

In eukaryotes, oxidative phosphorylation occurs in the inner mitochondrial membrane, specifically at the cristae of this membrane. It includes the respiratory chain, which provides oxidation of coenzymes reduced by the Krebs cycle, and ATP synthase, an enzyme capable of phosphorylating ADP to ATP from the energy released by the respiratory chain during the course of treatment. oxidation of coenzymes. This energy is stored as an electrochemical gradient across the inner membrane of the mitochondria by proton pumps that generate a proton concentration gradient during the flow of electrons along the respiratory chain. The final step of the latter is the reduction of one oxygen molecule by four electrons to form two molecules of water by fixing four protons.

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i believe the answer would be b. hope it : )

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.