Answer:
Ionic compounds
Explanation:
Ionic crystals are hard and brittle and have high melting points.
Its like 2 twizzlers twisted to the left with marshmellows attached.
D. Cyanobacteria one of the first beings
Electron Carriers such as NADH and FADH are generated during the Krebs cycle (Option D).
<h3>What is the Krebs cycle?</h3>
The Krebs cycle is the second step of cellular respiration, which allows aerobic cell to generate energy in the form of ATP.
The Krebs cycle generates the reduced forms of the carriers NADH and FADH, which are used in oxidative phosphorylation to generate ATP.
In conclusion, Electron Carriers are generated in the Krebs cycle (Option D).
Learn more about electron carriers here:
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