Based on the table of attributes given below, which of the following statements are FALSE about the two organisms?
Characteristic Bacterium A Bacterium B
Endospore formation yes no
Capsule no yes
Type IV pili yes no
Flagella no no
Morphology bacillus bacillus
A) Bacterium A is more resistant to heat and ultraviolet light.
B) Bacterium B likely forms a slime layer better than Bacterium A.
C) Bacterium B is likely to exhibit motility.
D) Both bacteria may attach to surfaces.
Answer: C
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Stress can have a significant effect on the body. Chronic stress
a. may lead to excessive stimulation of neurons. b. is associated with elevated levels of epinephrine from the adrenal cortex. c. is associated with elevated levels of cortisol from the adrenal cortex. d. may lead to increased blood flow to the brain, especially the hippocampus. e. may suppress stimulation of neurons.
Which tissue type is most likely to become
cancerous?
a. connective b. muscular c. epithelial d. neural e. adipose
The number of neural cells in the cerebral cortex decreases during the aging process.
Answer the following statement true (T) or false (F)
Porifera differ from other animals in that they
A. do not form true organs B. are sessile C. have three germ layers D. have radial symmetry