Each of the following will enhance and promote phagocytosis, except
A. deposition of complement fragments on bacterial cells.
B. tumor necrosis factor (TNF) and other cytokines.
C. deposition of interferon on bacterial cells.
D. interaction of TLRs and PAMPs.
Answer: C
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Mycorrhizae
A. are vital for the survival of lichens. B. are vital for the survival of many plants. C. increase the absorptive ability of roots. D. are used in the production of wine, beer, and bread. E. are vital for the survival of many plants AND increase the absorptive ability of roots.
The accumulating data from biogeography, comparative morphology, and fossil discoveries led early naturalists to
propose that species ____.
a. helped sculpt Earth's surface by foraging activities b. are all evolutionarily related c. had changed over time d. never went extinct e. were created in a perfect state
In radishes, long or round are homozygous forms of an incompletely dominant gene, and oval is the phenotype of the heterozygote. If a long radish is crossed with a round radish, which of the following phenotypic ratios of the F2 generation is correct?
A. all round B. all oval C. 1/2 long, 1/2 oval D. 1 long, 2 oval, 1 round E. 1/2 oval, 1/2 round
Ample evidence suggests that all animals respond to their environment through instinct and simple innately programmed learning and do not display cognitive behavior.
Answer the following statement true (T) or false (F)