The portion of the flower containing pollen grains is
a. the pollen sac.
b. the microsporangium.
c. the anther.
d. all of the above.
a
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The transport maximum is related to the property known as ________
Fill in the blank(s) with the appropriate word(s).
Small animals, such as water striders and water spiders, can run across a pond's surface due to ________
Fill in the blank(s) with correct word
Identify this plant as a monocot or eudicot after examining its stem and leaf. 
A. This plant is a eudicot. B. This plant is a monocot. C. Not enough information is provided to differentiate the plant as a monocot or eudicot.
Which of the following is not a tenant of the Lyon hypothesis?
A) X inactivation occurs early in development. B) initial X inactivation is random. C) X inactivation is passed down during mitosis. D) X inactivation occurs on the maternal X chromosome. E) X inactivation of descendant cells is the same as the progenitor cell.