What percentage of influence does lifestyle have on a person's health status?

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

The image shows embryos of three vertebrate classes

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent