The cultural makeup of the u. s. population has changed over the past few years because of immigration and other factors. such long-term changes in the genetic and cultural makeup of a population are part of?

Normative history-graded influences.

Explanation:

Normative history-graded influences are events that affect the majority of the people in a community making a change in their culture. Inmigration is a factor that changes a culture because it introduces new traditions, points of view, objects, etc. Another thing that can make a normative history-graded influence is when people from the United States have children with inmigrants or inmigrants' descendants because they are modifying the DNA of a population that has certain characteristics

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.