The macromolecules responsible for bacterial adherence that are NOT covalently attached to bacteria are collectively called
A) lipid A.
B) biofilms.
C) capsules.
D) glycocalyx.
Answer: D
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A common respiratory problem in the elderly or morbidly obese is
a. asthma. b. sleep apnea. c. bronchitis. d. bronchiolitis. e. the common cold.
Y-linked traits are ____
a. known as homozygous traits b. known to skip generations in males c. carried only by males and transmitted only to males d. carried only by females, but are never expressed e. passed on to only 50% of female progeny
The ________ sense internal and external stimuli, and send out responses in the form of chemical messengers called ________
A) meninges; axons B) cerebrospinal fluids; myelins C) muscles; chemokines D) dendrites; arachnoids E) neurons; neurotransmitters
Which factor allows bacteria species to adapt to environmental changes faster than fish?
A. Smaller size B. Lack of a nuclear membrane C. Shorter generation time D. Smaller nutrient needs