Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
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They were similar to modern humans in that they were bipedal (that is, they walked on two legs), but, like apes, they had small brains. Their canine teeth were smaller than those found in apes, and their cheek teeth were larger than those of modern humans.
Answer:
I think its the frontal lobe of the brain
Answer:
Loss of electrons and hydrogen ions are generally involved in oxidation reactions in biological systems
Explanation:
The substrates involved in the oxidation reaction in biological systems often loss hydrogen ion detached from itself and thereafter an electron is removed. The substrates are then oxidized by the addition of oxygen to the substrates.
These processes are catalyzed by Oxidoreductases and oxidation takes place alongside with reduction.