Answer:
Option A
Explanation:
In this case, there are two varieties of horses: Domestic horses that are raised and bred by humans and Wild horses that lives in the wild. The issue of varieties in coat colour of domestic horses can be explained as what occured by selective breeding, also known as artificial selection which is a technique by which humans develop new offsprings with desirable and suitable characteristics. These breeders select two parents that possess beneficial phenotypic traits to mate, producing offsprings with those desired traits such as strength and also for coat colour as stated.
A cross between a chicken and a turkey is called a "turkin." They are raised in farms in Wyoming. The "turkin" is an example of hybridization.
Arrow a should point to muscle tissue, arrow B should point to an organ, arrow c should point to organ system.
The term would be psychophysics
Psychophysics is a science branch that investigates the relationship between physical stimuli (in this case light stimuli) and the sensations and perceptions they produce (like perception of color). It represents the combination of psychological events (psycho-) and physical events (-physics) with the purpose of finding their quantitative relation. Measuring the stimulus parameters (such as amplitude and wavelength of light stimuli) it is possible to determine the minimum perceptible stimulus or the threshold stimulus.
