The earliest human societies were characterized by
a. relatively large numbers in order to provide protection.
b. a diet consisting mainly of simple crops.
c. frequent periods of starvation.
d. a concentration on building social institutions.
Question 2
Study of family structure in poor families found all of the following EXCEPT:
a. female-headed families are the dominant family form
b. fatherless families seem to be a direct consequence of poverty
c. poor families tend to share the same norms of family life as others in society
d. the father is a central family figure
A closer look at the reproductive cycle of human immunodeficiency virus (HIV)
A chuckwalla, Sauromalus ater. Chuckwallas are large herbivorous lizards living in the southwestern
Large Skipper
brain development in the human embryo
Nine pulse sites on the human body.
Annotation of a DNA sequence containing part of the human globin gene