6.
Diagrams A and B represent structures found in the human body. Diagram B represents the
functional unit of which structure represented in diagram A?
A. structure 1
B. structure 2
C. structure 3
D. structure 4
7. The diagram below represents three human body systems.
Which row in the chart below correctly shows what systems A, B, and C provide for the human
body?
Row
System A
System B
System C
A.
blood cells
glucose
hormones
B.
oxygen
absorption
gametes
C.
gas exchange nutrients
waste removal
D.
immunity
coordination carbon dioxide