What is the principle purpose of the muscular system?


Answer: Create movement

Biology & Microbiology

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Archaea have very diverse environmental requirements and tolerances. From what you have learned about them, which among the following conditions or substances do ALL archaeans require for survival and reproduction?

A. oxygen B. carbon C. moderate pH D. moderate temperature E. moderate salinity

Biology & Microbiology

Under which conditions would an endotherm have the lowest metabolic demands?

a. after eating a large meal b. sitting outside on a winter’s day c. sitting in front of the television d. jogging on a warm spring morning

Biology & Microbiology

Watson and Crick describe the relationship between ________ as a directional flow of information called the "central dogma".

A) nucleic acids and proteins B) enzymes and proteins C) peptides and polypeptides D) DNA and RNA

Biology & Microbiology

A dominant allele does not express itself in every person that contains it; occasionally parents without the characteristic have children that show the characteristic. This statement represents a feature known as 

A. fitness. B. expressivity. C. recessiveness. D. penetrance.

Biology & Microbiology