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• soil ph is a measure of the acid content of the soil. the graph shows the tolerance of earthworms to soil ph. the graph is titled tolerance. it plots population on the vertical axis against a range of environmental variable on the horizontal axis. the shape of the curve is like a bell, and extends from the lower limit of tolerance to the upper limit. in a meadow where earthworms live in the soil, the ph gradually decreases from the optimum range into the zone of stress. what is the most likely effect on the earthworm population? a. the size of the earthworm population increases, but otherwise the population is unchanged. b. the size of the earthworm population decreases, but otherwise the population is unchanged. c. earthworms that tolerate high ph become more common in the population. d. earthworms that tolerate low ph become more common in the population.
  
• select the correct answer. look at the circuit diagram. which of these components is part of the circuit? a. voltmeter b. switch c. ac power source d. capacitor
  
• a karaoke machine regularly costs $153 and is on sale for 25% off. what is the discount?
  
• an identity thief watches someone enter a four-digit pin and manages to see that the first digit is 3. they also know that the second digit is either 4 or 7. if the thief tries guessing the pin, how many possiblities would there be? a. 100 b. 162 c. 180 d. 200 please select the best answer from the choices provided.
  
• i'm just making sure you haven't gone."" i said nothing by way of reply. he'd seen what he wanted, that i hadn't gone anywhere. he'd turn and leave. i was afraid to go behind the bookcase again. it was very hard for me to look at the rooms with the people gone. i couldn't face going back upstairs. which line from the passage supports the theme ""people’s possessions deserve respect”? “even though it's the writings of a child, it's hers and it's her secret.” “i was haunted by the fact that some more of anne's pages remained cast around on the floor in the hiding place.” “i was afraid to go back up there, as silberbauer had already checked on me several times.” “it was very hard for me to look at the rooms with the people gone.”
  
• what is the area of the base of the smaller prism, rectangle abcd? 1.26 cm2 1.26 cm3 3.78 cm2 3.78 cm3
  
• why don't we notice changes in the elevation of the land due to the moon's pull
  
• when you read people’s writing or listen to them speak, can you tell how they feel about what they’re saying? include a description of some differences between listening to speech and reading printed text.
  
• when lydia performed an operation on the matrix below, she forgot to include one element. what is the value of the unknown element, b? –7 –5 –3 –2
  
• in the passage, the author uses the phrase “franchise and free agency” to refer to