What type of roots do monocot plants often exhibit?
A) no roots at all
B) one large taproot
C) fibrous, broadly spread roots
D) roots that extend deep into the ground
C
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Radioisotopes are useful when
A) very high sensitivity is required. B) turnover rates need to be determined. C) the fate of portions of particular molecules need to be followed. D) very high sensitivity is required, turnover rates need to be determined, and the fate of portions of particular molecules need to be followed.
The process of meiosis results in ____
a. the production of four identical cells b. no change in the chromosome number from parental cells c. a doubling of the chromosome number d. a reduction in the chromosome number e. two diploid cells
Flowering in Arabidopsis appears to require ____
a. production in leaves of CO protein and FT protein b. movement of CO protein from leaves to the shoot apex c. expression of CO protein in the shoot apex d. movement of FT mRNA from leaves to the shoot apex e. movement of FT protein from leaves to the shoot apex
What are the stinging organelles of Cnidarians called? a. Collar cells b. Nerve nets c. Nematocyst d. None of these choices
e. Mesoglea