The answer would be A. Methane
The four types of fossils are:
<span><span>mold fossils = (a fossilized impression made in the substrate - a negative image of the organism)
</span><span>
cast fossils = (formed when a mold is filled in)
</span><span>
trace fossils = ichnofossils (fossilized nests, gastroliths, burrows, footprints, etc.)
</span><span>
true form fossils= (fossils of the actual animal or animal part).</span></span>
Answer:
A) Products
B) Energy
C) Photosynthesis
D) Reactants
E) Oxidative phosphorylation
The letter "A" stands for :
B) Adenine.
Nicotinamide adenine dinucleotide ( NAD ) is a cofactor found in all living cells.
Hope this helps!
Davinia.
