How your teeth are shaped and formed
The molecules which store and process genetic information is DNA - deoxyribonucleic acid.
Answer:
A. single-gene
Explanation:
It is controlled by a single gene that has two alleles. The allele for a widow's peak is dominant over the allele for a hairline with no peak.
Fight or flight, because according to Hans Selye, this occurs at times of danger when your adrenaline is heightened.
Overproduction - An organism gives birth to too many children
Genetic Variation - The offspring each have genetic differences in appearance, behavior, etc
Struggle to Survive - Offspring must fight in order to gain essential resources (food, water, mates, etc)
Successful Reproduction - Organism produces offspring with beneficial adaptations that aid in survival