Briefly discuss how the evolution of jawed fishes and other predatory creatures affected the marine ecosystem


The development of predators had a major impact because organisms that had previously not needed defense mechanisms either developed defense systems or suffered great population losses.

Environmental & Atmospheric Sciences

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The Three Gorges Dam produces about ______ percent of China’s energy’s output

A. 10 B. 25 C. 20 D. 12

Environmental & Atmospheric Sciences

Instructions: Choose one answer from each pair of selections. The process of FILLING | DEEPENING describes a weakening storm system with increasing surface pressure

Environmental & Atmospheric Sciences

Which of the following is in the correct order from the center of the Earth to the surface of the Earth?

a. Inner core, Outer core, Asthenosphere, Lithosphere b. Inner core, Outer core, Lithosphere, Asthenosphere c. Outer core, Inner core, Asthenosphere, Lithosphere d. Asthenosphere, Inner core, Outer core, Lithosphere

Environmental & Atmospheric Sciences

Practices such as no-till agriculture may help mitigate against soil erosion

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences