The monarch butterfly-milkweed relationship is best described as an example of ________
A) succession
B) coevolution
C) carnivory
D) parasitism
E) commensalism
B
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The Principle of Cross-Cutting Relationships states that rocks are older than the fault that displaced them.
Indicate whether the statement is true or false.
One of the reasons biodiversity is such an important aspect of sustainability is the fact that
a. cycling chemicals maintains a ready supply of new materials for water, soil and food b. it is the ultimate source of energy for plants c. interactions among species provide population controls that limits ultimate population sizes of many species d. it provides water purification and topsoil renewable e. two of these answers are correct
The buildup of toxic salts in the topsoil where desert lands are subjected to extensive irrigation is known as
A) toxicology B) fossil water C) hydropolitics D) salinization E) groundwater
________ metamorphism will occur where two blocks of rock are grinding against each other
A) Impact B) Regional C) Hydrothermal D) Fault zone