Which type of glial cells is involved in the production of cerebrospinal fluid?
a. satellite glia
b. astrocytes
c. ependymal cells
d. Schwann cells
c. ependymal cells
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They famous Urey-Miller experiments provided crucial support for which hypothesis?
a. the Endosymbiosis hypothesis b. the Oparin-Haldane hypothesis c. the RNA World hypothesis d. the Dickerson oxidizing atmosphere hypothesis e. the Hydrothermal vent hypothesis
In the illustration above showing the haploid phase in the life cycle of a fern, what part represents the male
gametangium? a. 1 b. 2 c. 3 d. 4 e. 5
In the alternation of generations, what is formed when a spore germinates?
A) A haploid stage called the gametophyte. B) A plant that produces spores when mature. C) An increased number of spores. D) A haploid stage called the sporophyte. E) A plant that meiotically produces sex cells.
The Calvin cycle produces ________, not __________.
Fill in the blank(s) with the appropriate word(s).