Figure 23.8
In the photograph of the zygote fungus Pilobolus, what are the dark "hats" atop of the structures?
A. Hypha
B. Gametangium
C. Zygote
D. Sporangium
E. Nucleus
Answer: D
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Statoliths, particles that move in the direction gravity pulls them, are typically ____ in plants
a. amyloplasts b. calcium carbonate crystals c. nuclei d. vacuoles e. hormones
A cell may meet the need for large quantities of a specific protein by all of the following EXCEPT :
a. continuously synthesizing the mRNA molecule that specifies that protein. b. increasing the half-life of the mRNA that specifies the protein. c. having multiple copies of the gene that codes for that protein. d. amplifying protein genes by DNA replication e. inhibition of DNA synthesis
____ is a sugar.
A. Sucrase B. Pentose C. C27H46O D. COOH-CH2-NH3
Why can corn seeds germinate in total darkness?
A. The seed coating absorbs water. B. The endosperm provides the embryo with the nutrition needed during the initial germination stages. C. Seeds are heterotrophic and can capture nutrients from the soil. D. Soil microbes degrade the seed coating allowing the seed to germinate.