The molecule lignin is associated with which property of a cell wall?
A. water resistance
B. flexibility
C. ability to hold cells together
D. All of the above are correct.
A
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A sea star suffers from an infection that affects its ampullae. Due to the infection, the ampullae no longer function. What do you predict will be the effect on the sea star?
A. No noticeable effect will occur. B. The sea star will be unable to reproduce. C. The sea star will be unable to extend its tube feet. D. The sea star will be unable to store energy.
All bacterial cells have ________.
A. capsules B. flagella C. a chromosome D. the ability to produce endospores E. an S-layer
Which of the following are true of trash?
a. Cigarette filters can persist in the environment for 10 years. b. Components of a disposable diaper will persist for 100 years. c. A plastic bag can persist for 50 years. d. Many animals are killed by consuming trash each year. e. All of these are true.
Compare and contrast the sensory neurons, motor neurons, and interneurons
What will be an ideal response?