Answer:
Typically in mammals, the gender of an organism is determined by the sex chromosomes. In the case of humans, this happens to be the X and the Y chromosomes. So as you may recall, if you are XX, you are female. If you are XY, you are male.
D. Infrared images can show hot spots as red areas.
Explanation:
imagine I teach my child at my home , it doesn't involve any commercial purpose . I don't need any money from my child , so that's free market economy.
