Discuss the mechanisms for flight that some reptiles developed in the Mesozoic. What will be an ideal response?
Pterosaurs had wings that developed from modified forelimbs. Many of the large pterosaurs
probably glided, rather than flying by flapping their wings, whereas the small pterosaurs may
have flown by flapping their wings.
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Was there any time in the last 800,000 years when temperature in the Antarctic was higher than it is today? If so, when?
The question is based on Figure 24-5, showing variations in CO2 and temperature anomalies in Antarctica going back 800,000 years. This temperature record shows the major glacial (cold) and interglacial (warm) periods of the later Pleistocene Epoch (2.58 million to 11,700 years ago). What will be an ideal response?
A stratus cloud that produces precipitation is known as
A) stratocumulus. B) altostratus. C) nimbostratus. D) cirrostratus.
Which Caribbean island has an active volcano?
A) the Bahamas B) Barbados C) Montserrat D) Jamaica E) Cuba
The first stars formed about 300 million years after Big Bang in the most massive nebulae because ________
A) all of the nebulae at that time were massive and it was not until much later that smaller nebulae formed B) the massive nebulae had enough gravity to attract star material early in the history of the universe C) only the massive nebulae had the material needed to make stars D) the massive nebulae had enough gravity to collapse and condense E) it took that long for enough matter to form to make a star