In the Krebs cycle, how is citric acid formed? (1 point) O Enzymes combine hydrogen ions, oxygen, and electrons.
O Carbon dioxide bonds with a chain of coenzyme A.
O Pyruvic acid molecules are broken down by an acetyl group.
O Acetyl-CoA joins with a large molecule called oxaloacetic acid.

D. Acetyl-CoA joins with a large molecule called oxaloacetic acid.

Explanation:

this forms a citrate molecule, which is then oxidized and releases two carbon dioxide molecules to be fed into the cycle.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

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