Fragments of DNA have been extracted from the remnants of extinct woolly mammoths, amplified, and sequenced. These can now be used to _____
A) introduce certain mammoth traits into relatives, such as elephants
B) clone live woolly mammoths
C) appreciate the reasons why mammoths went extinct
D) better understand the evolutionary relationships among members of related taxa
D
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Most of the nutrient digestion and absorption takes place in the ____
a. stomach b. duodenum c. jejunum d. ileum e. large intestines
________ are made by certain pathogens such as Staphylococcus, Salmonella, Escherichiacoli, and Clostridiumbotulinum. These substances often travel in the bloodstream and cause disease symptoms
Fill in the blank(s) with correct word
The movement of sucrose and H+ into the cell by the same membrane protein reflects the actions of what type of transporter?
A. symporter B. mechanosensitive channel C. voltage-gated channel D. antiporter E. uniporter
The process of carbon dioxide fixation refers to ________.
A. reaction of carbon dioxide with water to form carbonic acid B. release of carbon dioxide during catabolic reactions C. release of carbon dioxide during anabolic reactions D. reduction of carbon dioxide and incorporation into organic molecules that are assimilated