Answer to Question 1
The size of a group is one of its most important features. Interactions are more
personal and intense in a small groupa collectivity small enough for all members to
be acquainted with one another and to interact simultaneously. A dyad is a group
composed of two membersthe active participation of both members is crucial for the
group's survival. If one member withdraws from interaction or quits, the group
ceases to exist. Dyads provide members with a more intense bond and a sense of unity
not found in most large groups. When a third person is added to a dyad, a triada
group composed of three membersis formed. In a triad, even if one member ignores
another or declines to participate, the group can still function. In addition, two members
may unite to create a coalition that can subject the third member to group pressure to
conform. As the size of a group increases beyond three people, members tend to
specialize in different tasks, and everyday communication patterns change. In groups
of more than six or seven people, it becomes increasingly difficult for everyone to take
part in the same conversations therefore, several conversations will probably take
place simultaneously. In groups of more than ten or twelve people, it becomes virtually
impossible for all members to participate in a single conversation unless one person
serves as moderator and guides the discussion.
Answer to Question 2
a
Genetic drift and population size.
Lymph Nodes of the Head and Neck and Drainage Patterns
Nose Size
Large-scale circulation systems produce global climate patterns
Group of Gorillas
New patterns of gene expression can be generated by overlapping regions containing two different gen