B: An annual weather pattern
Ima answer them one at the time so dont be mad okay?
1 is d becaus ethose 3 are the components
In large intestine and it is been in continuous motion for better functioning of the system
The right answer is B) NADH and FADH2.
NADH, FADH2 are molecules involved in the Krebs cycle, they carry electrons and H + protons.
NAD is involved in metabolism as an electron carrier in oxidation-reduction reactions, NAD + as an oxidant and NADH as a reducing agent.
Flavin adenine dinucleotide (FAD) is an oxidation-reduction cofactor derived from riboflavin (vitamin B2). It is associated with the enzymes of the class of oxido-reductases to which it is linked by a covalent bond: it is a prosthetic group.
The redox couple is: FAD ==> FADH.
Throughout the course of evolution, organelles such as mitochondria and chloroplasts (a form of plastid) may have arisen from engulfed prokaryotes.