Trilobites dominated the Paleozoic era.
a. true
b. false
a. true
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Mass movement in which material move as a viscous fluid or plastically is termed _______
Fill in the blank(s) with correct word
Earth is composed of three concentric layers. What are they, and how do they differ?
What will be an ideal response?
Which of the following best matches the description?Chemical produced by one animal that changes the behavior of another.
A. micronutrients B. micronutrient C. macronutrients D. chlorinated hydrocarbon E. fungicide F. pheromone G. persistent pesticide H. hard pesticide I. auxin J. biomagnification K. herbicide L. weed M. organophosphate N. biocide O. rodenticide P. soft pesticide Q. macronutrient
Most of the people in the U.S. are considered to be overweight.
Answer the following statement true (T) or false (F)