Answer:
Active Transport
Explanation:
Active transport is what is used to help material move through a cell. In this picture it shows the material going through a part in the mitochondria which is like a door that opens to only certain things.
Answer:Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can affect many genes along the chromosome and disrupt the proteins made from those genes.
Structural changes can occur during the formation of egg or sperm cells, in early fetal development, or in any cell after birth. Pieces of DNA can be rearranged within one chromosome or transferred between two or more chromosomes. The effects of structural changes depend on their size and location, whether gene function is interrupted, and whether any genetic material is gained or lost. Some changes cause health problems, while others may have no effect on a person's health.
Explanation: took the test
A significant development in the twentieth century that has changed the notion of sex as reproduction to sex as pleasure is: modern methods of contraception.
Contemporary scholarship on the history of sexuality is rooted in late-twentieth-century social movements which have actively sought to reshape the sexual landscape. The radicalism of the 1960s spawned not only a "sexual revolution" but also a "New Social History. As historians focused on everyday life, household structure, demography, they considered sexual matters through studies of fertility, marriage, "illegitimacy," and the changing structure and content of family relations. Since the mid-1970s, the greatest energy for studies of sexuality has come from women's history and gay studies. Scholars with ties to the fem inist and gay/lesbian liberation movements have studied the history of sexuality with an eye to understanding the interplay between dominance, power, pleasure, and resistance in sexual relations.
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