Which of the following does not characterize adjuvants?
A) chemical additive
B) used only since the late 1990's
C) can enhance vaccine and cancer therapies
D) some formed from bacterial extracts
E) All of these do charactize adjuvants.
B
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Which of the following statements characterizes an equinox?
A. The days and nights are of equal length except at the poles B. The days and nights are of unequal length except at the poles C. The Earth is tilted toward the sun D. The Earth is tilted away from the sun
Place a check mark in the rock type column that corresponds to the process that could form or alter that rock.
What is the leading cause of death and destruction in hurricanes and why? What will be an ideal response?
Figure 3.5 Key living (biotic) and nonliving (abiotic) components of an ecosystem in a field.
?
In the accompanying figure, notice that the fox (secondary consumer) is in the process of pouncing on the rabbit. If humans were to remove that predator (fox), what would be the effects on the rest of the ecosystem? Be as specific as possible.
What will be an ideal response?