Two major structures that allow bacteria to adhere to surfaces are ___ and ___.
A. pili, ribosomes
B. fimbrae, capsules
C. lipopolysaccharides, techoic acids
D. actin filaments, phospholipid membrane(s)
E. actin filaments, ribosomes
Answer: B. fimbrae, capsules
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RNA polymerase III of eukaryotes is responsible for transcribing ________.
A. rRNA B. tRNA C. mRNA D. All of the choices are correct.
Why is the phrase "survival of the fittest" somewhat misleading?
A) It implies that the best possible organism will evolve. B) It implies that organisms will always grow bigger and more complex. C) It implies that there's random generation of variation. D) It implies that humans are the proper end result of evolution.
Modifications of previous behavior based on experience represent
A. learning. B. adaptations. C. fixed actions. D. external stimuli.
The tempo of the heartbeat is set by a cluster of specialized cardiac muscle cells called the ________
Fill in the blank(s) with correct word