Which group of fossils is considered evidence for the former existence of Gondwana?
a. Glossaurus
b. Pecopteris
c. Neuropteris
d. Glossopteris
e. Messopteris
d. Glossopteris
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Which of the following is not evidence collected by the Glomar Challenger in support of the Plate Tectonic model?
A) Fossils increase in age with increasing distance from the ridges. B) Sediments get thicker with increasing distance from the ridges. C) Oceanic crust is less than 180 million years old. D) Continental crust is typically several hundred million years old or older.
Taxonomy is a branch of science which
A. labels the types of ecosystems. B. allocates public funds for conservation efforts. C. attempts to create new species in laboratories. D. describes relationships among species.
Which of the following would not be part of the drug discovery process?
A. examining folklore for herbs and potions B. changing an old drug a little and testing the new drug for activity C. random testing of new compounds for drug activity D. learning the exact shape of various receptor sites E. All of the above are part of the process.
Volcanic ash ____
a. ?is so small that it does no damage if inhaled b. ?is carried so high into the atmosphere that it does not have much effect on the area near an eruption c. ?has a large effect near an eruption, but little effect further away d. ?is composed of aerosols formed from the reaction of gasses and water vapor e. ?is a major disruption to transportation and evacuation