c____________ are generally soft-bodied animals that lack a rigid internal skeleton for the attachment of muscles, but

many possess some sort of hard, protective outer covering. Fill in the blank(s) with the appropriate word(s).


Invertebrates

Environmental & Atmospheric Sciences

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Shields are the exposed portions of cratons that contain igneous and metamorphic rocks

a. True b. False

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What is the difference between prokaryotes and eukaryotes? Which are seen first in the fossil record?

What will be an ideal response?

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Which of the following factors would NOT be successful in stabilizing a slope that has already failed?

a. excavate slumped material from the base of the slope b. install subsurface drains c. construct a retaining wall d. decrease the slope angle

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Evaluate which energy sources holds the most promise for the Middle East and North Africa

What will be an ideal response?

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