Match the microscope part with it's function.
Iris diaphragm
A) Focus light onto the specimen
B) Control the amount of light reaching the specimen
C) Brings the specimen into general focus
D) Increases the detail of the image
B) Control the amount of light reaching the specimen
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The spinal cord runs through the vertebral column and connects with the brain through the
__________. Fill in the blank(s) with the appropriate word(s).
A flower forms from
a. an ovary tissue that migrates from the root. b. stem cells that form tumor like growths. c. impregnated pollen grains. d. a modified branch called a receptacle. e. bark tissue.
The atomic number of chlorine is 17. The atomic number of magnesium is 12. What is the formula for magnesium chloride?
A) MgCl B) MgCl2 C) Mg2Cl D) MgCl3
If the beetles survive by consuming cycad pollen, then whether the beetles should be considered mutualists with, or parasites of, the cycads depends upon the ____
A) extent to which their overall activities affect cycad reproduction B) extent to which the beetles are affected by the neurotoxins C) extent to which the beetles damage the cycad flowers D) distance the beetles must travel between cycad microsporophylls and cycad megasporophylls