________ receptors on macrophages and other cells of the immune system recognize molecules such as lipopolysacchride that are broadly shared by pathogens.
Fill in the blank(s) with the appropriate word(s).
Answer: Toll-like
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Fungi feed through extracellular digestion and then absorption. How would the rates of decomposition of detritus be altered if fungicide (something that kills fungi) were sprayed on the forest floor?
A. Decomposition rates would be lowered because fungi would be destroyed. B. Decomposition rates would be higher because bacteria would take over the role of decomposition, and they reproduce at faster rates than fungi. C. Decomposition rates would be the same because fungi don't have hyphae above ground, so they would not be destroyed. D. Decomposition rates would be lowered because fungi would choose to grow in an area without fungicide.
Rita Covas and colleagues found evidence of
stabilizing selection in African sociable weaver birds. Their field studies indicate that a. fat birds escape predators better than lean birds. b. fat birds are less attractive to predators. c. lean birds are more likely to starve. d. good nesting sites are abundant. e. each bird constructs its own nest.
The number of proteins produced by the human genome is significantly less than the number of genes
it contains. Indicate whether the statement is true or false.
Most basidiomycetes are autotrophs that decompose plant debris, especially cellulose and lignin.
Answer the following statement true (T) or false (F)