Naturally preserved remains of organisms that lived long ago

Someone me with this: a mineral' is determined by its actomic structure.

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?

Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?