A remora attaching itself to a shark to obtain food and transportation without harming its host is an example of which of the following types of symbiotic relationship?
A) Commensalism
B) Mutualism
C) Naturalism
D) Parallelism
E) Parasitism
A
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At the level of species, the ocean is much less diverse than the terrestrial environment, with only approximately ________ percent of the total known species.
A. 5 B. 25 C. 10 D. 20 E. 15
In energy conversions such as burning coal to produce heat, ________
A) entropy decreases because heat is used to ignite the coal B) entropy increases because of heat released in the conversion C) entropy decreases because of heat released in the conversion D) entropy is unchanged because heat is used to ignite the coal
Banking involves the exchange of money between savers and borrowers, as well as the exchange of assets from borrowers to savers
Indicate whether the statement is true or false
Mercator maps show the greatest amount of distortion in the ____
a. polar region b. middle latitudes c. equatorial region d. oceans