Where within a eukaryotic cell is ribosomal RNA (rRNA) synthesized?
A) cytoplasm
B) lysosome
C) mitochondrion
D) nucleolus
Answer: D
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Osmosis describes:
A. the movement of water from areas of lower solute concentration to areas of higher solute concentration. B. the movement of water from areas of lower water concentration to areas of higher water concentration. C. the movement of solutes from areas of higher water concentration to areas of lower water concentration. D. the movement of solutes from areas of lower solute concentration to areas of higher solute concentration. E. the movement of solutes from areas of higher solute concentration to areas of lower solute concentration.
I2KI is used to test for the presence of sugars
a. True b. False
The portion of the peripheral nervous system that regulates the internal environment is the:a
telencephalic nervous system. b. autonomic nervous system. c. thalamic nervous system. d. somatic nervous system. e. hypothalamic nervous system.
Please choose the correct explanation regarding these tapeworm dimensions—30 feet long, yet extremely thin.
> The thinness of the worms allows maximal absorption of nutrients. > Their segments, called proglottids, are produced at the neck, adding length to the worm. > The male and female worms attach end-to-end during reproduction, making them appear to be longer than they really are. > They are flattened nematodes.