About how many species become extinct each year?
20,000
10,000
37,000
50,000

Heidi is a student of psychology at the university of arizona. she is currently involved in a research project to test the effects of sexual dominance on motherhood. heidi is most likely applying which psychological approach? humanism feminism behaviorism structuralism

Samantha is looking for a boyfriend. based on the gender differences explained in this activity, which is she likely to prefer?

When copernicus changed the way we think about the solar system, he did so not by discovering new information, but by looking differently at information already available. edward jenner's discovery of a smallpox vaccine occurred when he shifted his focus to disease prevention from the then more common emphasis on cure. history is replete with breakthroughs of this sort?