Identify three ecological characteristics of the blue whale that make it vulnerable to extinction.
What will be an ideal response?
Low reproductive rateSpecialized nicheFixed migratory patterns
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Which of the following is NOT a problem currently being faced by the North American City?
A) municipal socialism B) fiscal squeeze C) infrastructural decay D) mortgage foreclosures E) poverty
Describe and discuss the use of biological control for battling pests
What will be an ideal response?
Is Kansas flatter than a pancake?
A) Yes B) No C) It is about the same flatness D) No one has calculated the answer.
Lithospheric plates move on the Earth's surface because ____.
a. warm mantle ascends at ridges and cool mantle descends at subduction zones b. convection occurs only in the asthenosphere c. cool mantle ascends at ridges and warm mantle descends at subduction zones d. warm mantle ascends at ridges and cool mantle descends at subduction zones AND convection occurs only in the asthenosphere e. convection occurs only in the asthenosphere AND cool mantle ascends at ridges and warm mantle descends at subduction zones