I'll give you the first one: it's a reactant of respiration. if you want the other answers just dm me so its easier to communicate
A, Cold/dry air sinks below the warm/ wet are it is pushed upwards
Answer:
Succinate dehydrogenase is an enzyme complex which is found in the inner membrane of the mitochondria in case of Eukaryotes.
It is the only enzyme in the body that takes part in electron transport and citric acid cycle.
The pressence of this enzyme shows that there is a pressence of high mitochondrial content in that part of the body
Other dehydrogenases oxidizes a substrate by reducing the electron acceptor which is usually NAD⁺/NADP⁺ or flavin enzyme.
B is the correct answer i believe hope this helps!!
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