What are the differences between Saurischian and Ornithischian dinosaurs, and what was their

common ancestor like? What will be an ideal response?


Saurischian dinosaurs have a lizard-like pelvis, and Ornithischian dinosaurs have a bird-like pelvis.
These dinosaurs had a common ancestor, much like archosaurs. Archosaurs were small, long-legged
carnivores that walked and ran on their hind limbs, meaning that they were bipedal.

Environmental & Atmospheric Sciences

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When an air mass is warmer than the surface over which it is moving:

A) visibility within the air mass is usually very good. B) the lapse rate in the air mass is increased. C) the air becomes more stable. D) the letter k is added after the air mass symbol.

Environmental & Atmospheric Sciences

Most commercial logging today takes place in ________

A) the United States B) Mexico C) Canada, Russia, and Brazil D) Europe E) Australia

Environmental & Atmospheric Sciences

The name given to a hurricane-like storm that forms over the tropical western North Pacific Ocean is a(n) ____________________

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

Which of the following terms is not a correct reference to a desert pavement?

A) reg desert B) sand seas C) gibber plain D) lag gravels E) gobi

Environmental & Atmospheric Sciences