D, the black squirrels have survived because black has provided them with an advantage in this environment.
Phospholipids which are the main component of the cell membrane and is what helps the cell membrane to conserve internal fluids
Answer:
Height is affected by multiple pairs of genes on different chromosomes.
Explanation:
The height is a quantitative trait, it is a phenotypic feature that presents a continuous range of variation in the population. The cumulative effects of many genes and the environment produce a normal distribution bell-shaped curve when they are drawn, this being a characteristic of quantitative genetic traits. Examples of quantitative traits include, among others, height, metabolic rate and weight.