Coral and algae have a reciprocal relationship in which the algae perform photosynthesis, providing the coral with some nutrients and helping with the calcification process
In return, the coral provide the algae with certain nutrients and a place to live in a lighted environment. This is an example of a ________ relationship.
A) predator/prey B) opportunistic C) symbiotic D) parasitic
C
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What was the Meteor expedition's most important innovation?
A) The echo sounder B) The bathyscaphe C) Modern optical equipment D) The steam winch
Armed conflicts are most likely to contribute to famine ________
A) in countries that are primarily exporters of grain B) in coastal regions that make great use of seafood C) where rice is the main source of food D) where food production and distribution are already problematic
Which Venezuelan leader exerted strict control over the country by rewriting the constitution, imprisoning political enemies, and cracking down on media?
a. Nicolas Maduro b. Hugo Chavez c. Cesar Chavez d. Simon Bolivar e. Evo Morales
Two third-order streams must join to form a second-order stream
Indicate whether the statement is true or false