Scanned probe microscopy is used to examine fine detail of molecular complexes, such as blood clots, or molecules, such as DNA
Indicate whether the statement is true or false
TRUE
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Kansas and Pennsylvania are approximately at the same latitude. Yet why are the potential natural communities in Kansas mostly grassland and in Pennsylvania mostly temperate forest?
A. different vegetation due to different seed banks B. different temperatures C. different levels of moisture D. different altitudes E. different soil texture and pH levels
The ________ system of blood proteins act to lyse foreign cells.
Fill in the blank(s) with the appropriate word(s).
The "window period" for HIV is the time when the person is mostly likely to test positive for HIV antibodies.
a. true b. false
Which of the following support(s) the observation that herbivores do not generally eat all of the available plants?
I) top-down control hypothesis II) poor nutrition hypothesis III) plant-defense hypothesis A) only I B) only II C) only III D) only II and III E) I, II, and III