Gas particles bump into each other creating excess heat energy, which allows a warm clump of molecules to stick together. The clump is referred to as a Protostar which is the 2nd stage to a star forming.
I don’t know this question sorry lil bro :(
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Answer:
a, b, d are correct about citric acid cycle
Explanation:
a. The major reactants in the citric acid cycle are acetyl CoA, NAD + , GDP , and FAD . acetyl CoA from glycolysis cycle, and other reactants are NAD, GDP and FAD reacts to form NADH, FADH2 and GTP.
b)The citric acid cycle occurs in the matrix of mitochondria of the cell.
c) The citric acid cycle is an aerobic process.
I am sorry if the answer is wrong but I think it’s fishes’ scales