Answer:
a) the oxidizing agent.
Explanation:
In the citric acid cycle, malate is dehydrogenated into oxaloacetate and the reaction is catalyzed by malate dehydrogenase. The released electrons are accepted by NAD+. So, NAD+ is reduced into NADH. The substances that accept electrons during chemical reactions and are reduced to oxidize the other substances are called oxidizing agents. NAD+ serves as an oxidizing agent as it accepts electrons to oxidize malate into oxaloacetate.
I'm pretty sure it's smooth muscles.
Answer: <u>Aphotic</u><u> </u><u>zone</u>
less than 1% of sunlight penetrates the depths of the waters in the Aphotic zone
D is the answer (Aa and aa ) i hope this helps