Organisms with a cell wall cannot carry out
A. diffusion.
B. osmosis.
C. active transport.
D. endocytosis.
E. exocytosis.
Answer: D
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The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?
A) a covalent bond B) a hydrogen bond C) an ionic bond D) a hydrophilic bond E) a van der Waals interaction
An increase in air temperature will result in ____ water vapor in the atmosphere because warm air
holds _____ water vapor than cold air does.
a. more; less b. more; more c. less; less d. less; more e. no change in; less
During photosynthesis ____ diffuses into the leaf, while ____ diffuses out of the leaf
a. carbon dioxide; oxygen b. oxygen; carbon dioxide c. oxygen; water vapor d. water vapor; carbon dioxide e. water vapor; oxygen
Which of the following is the reason for existence of vestigial structures (useless parts of the body)?
a. They must have functioned in the near past. b. They must have functioned in ancestral organisms. c. They must have functioned in other organisms. d. They must have functioned in similar organisms.