Which of the following is true about zwitterions?
A) They are positively charged.
B) They are negatively charged.
C) They are electrically neutral.
D) The charge depends on the zwitterion.
C
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Climatic complementarity helps explain why a retiree spends summers in the north and winters in the south
Indicate whether this statement is true or false.
This relatively small volcanic feature consists of solidified lava and some volcanic ash. What kind of volcano is it?
A) Cinder cone
B) Shield volcano
C) Composite volcano
D) Volcanic dome
E) Caldera
A rock found on Earth that came from space is called ________.
Judge the following sentence according to the criteria given below: Microscopic zooplankton are primary consumers BECAUSE they eat microscopic phytoplankton
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.