Discuss the difficulties of applying the concept of species to a fossil organism. What will be an ideal response?
A species is a population of similar individuals that in nature interbreed and produce fertile
offspring. However, it is often unclear whether all members of a similar group of fossils were
able to interbreed. Hence, for fossil organisms, morphology has often been used to define
species.
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On this map, identify the letter that is over a midocean ridge.
A) A
B) B
C) C
D) D
E) Feature is not labeled.
Which of the following statements about the fifty-year flood is true?
a. The fifty-year flood has a 50% chance of happening in a given year. b. The fifty-year flood has a one-in-fifty chance of happening in any given year. c. Once a fifty-year flood occurs, the region is safe for 49 years from another fifty-year flood. d. The fifty-year flood occurs once every fifty years. e. The fifty-year flood cannot happen twice in the same year.
__________ a rebel faction, backed by Saudi Arabia and Pakistan gained control over most of Afghanistan by 1996
Fill in the blank(s) with correct word
Where will you find the greatest concentration of different species?
A. the poles B. Europe C. the tropics D. Siberia