Amphibians likely evolved from the lobe-finned crossopterygians
a. True
b. False
True
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Energy travels at right angles to the direction of the vibrating particles in ________ waves
A) longitudinal B) orbital C) reflective D) refractive E) transverse
A softball is tossed upward with 100 J of kinetic energy in the presence of air resistance. When the ball returns to its initial level its kinetic energy is
A. less than 100 J. B. 100 J. C. more than 100 J. D. need more information
Developed countries
a. are high-income b. are low-income c. use about 88% of the world's resources d. make up about 80% of the world's population e. Are high-income and use about 88% of the worlds resources
The annual march of the seasons and the passage of the subsolar point between the Tropics of Cancer and Capricorn affect these stations. Can you detect from your temperature graphs these seasonal effects? Explain.
