4. Use the bar graph in Figure 4 to answer questions a through e below.
a. At birth, what is the average number of red blood cells per
mm' of blood?
b. What appears to happen to the number of red blood cells
between birth and 2 months?
c. What happens to the number of red blood cells between the
ages of 6 and 8 years?
d. Between what ages is a human likely to have 4.6 million red
blood cells?
e. After 14 years of age, do males or females have a higher red
blood cell count?
Red Blood Cell Count During Human Growth
5.7
5.6
5.5
5.4
5.3
5.2
5.1
Average RBC count(million/mm2 of blood)
5.0
4.9
4.8
4.6
0
Birth 2 4 6 8 10 12 2
4 6
8
10 12 14+ 14+
(M) (F)
Months
Years
Time
Figure 4

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

1. seamount a raised footwall block between normal fault creates this 2. syncline break between rocks where a hanging wall rises relative to a footwall 3. hot spring on rolling hills, this a dip between hills 4. volcanic neck created when a block with hanging walls slips down between normal faults 5. caldera underwater volcano that never reaches above sea level 6. horst natural hot water on earth's surface containing many minerals 7. graben underwater volcano whose top is eroded flat by waves 8. crater less than a mile in diameter; looks like a bowl at the top of a volcano 9. guyot magma that filled the central vent that remains after the volcano has eroded 10. reverse fault over 1 mile in diameter; looks like a bowl over a volcano

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit