What were the pelycosaurs, and why were they important? What will be an ideal response?
Pelycosaurs were finback reptiles, which became the dominant reptiles in the Permian. They were the
first land-dwelling vertebrates to become diverse and widespread.
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Thrust a magnet into a coil of wire and the coil
A) becomes an electromagnet. B) has a current in it. C) both A and B D) neither A nor B
Explain how a wave moves water
What will be an ideal response?
What are the principle soil horizons? What processes dominate in each horizon?
What will be an ideal response?
Scientists have attempted to measure historical temperatures by collecting data from various sources. Four of these five answers are examples of such sources; select the exception.
A. radioisotopes in rocks and sediments B. pollen grains C. ice cores D. gold veins E. tree rings