When a hypothesis has survived extensive scrutiny and when competing ones have been eliminated, a hypothesis may be elevated to the status of a(n) ________
Fill in the blank(s) with correct word
scientific theory
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How is natural gas that is produced in Iran transported to the U.S.?
A. LNG tanker ships B. underwater pipelines C. large balloons D. trucks
What forms heavy elements such as gold, mercury, and uranium?
A) A protostar B) Condensation C) A supernova D) A solar nebula
The niche of a species is the functional role of that species in the community that it belongs to
Species that have narrow niches (have very specific resource requirements) are said to be ________, while species that have broad niches (able to use a wide array of resources) are known as ________. A) Type 2 species; Type 3 species B) widespread; restricted C) r-selected species; K-selected species D) specialists; generalists E) generalists; specialists
The Nomadic Warrior Theory and the Sedentary Farmer Theory have been developed to explain the common ancestry of
A) the non-Romance branches of Indo-European languages. B) Romance Languages. C) Sino-Tibetan languages. D) Afro-Asiatic languages. E) Austronesian languages.