What refers to all of the organisms in an area along with their interactions with their environment?
A. biogeography
B. ecosystem
C. biodiversity
D. biome
E. ecocommunity
B
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An electroscope is charged positively as shown by foil leaves that stand apart. As a negative charge is brought close to the electroscope, the leaves
A) fall closer together. B) spread farther apart. C) do not move.
Residual rock that has not experienced erosion is termed ________
A) basalt B) talus C) dome D) block E) bedrock
Which of the following is considered to be a challenge to the state?
A. The emergence and multiplication of nongovernmental organizations (NGOs) whose specific interests and collective actions cut across national boundaries B. The decrease in the number of international and supranational institutions. C. The decrease in nationalist and separatist movements in culturally composite states. D. The reversal of international migration flows that tended to undermine the state as a cultural community with assured and expected common values and loyalties.
Discuss how Silurian and Devonian reefs differed from Cambrian reefs What will be an ideal response?