The meteors in meteor showers are believed to be the debris left behind in comet orbits
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following allows more than one type of protein to be produced from one gene?
A) alternative forms of chromatin remodeling B) alternative forms of RNA splicing C) alternative forms of nucleosomes D) control of the frequency of translation initiation
Cells with cilia or flagella rely mainly on ___________________ to facilitate their movement
A. microtubules B. microfilaments C. intermediate filaments
Which category had the highest amount of endangered species in 2012?
a. amphibians b. insects c. mammals d. plants
What was a surprising feature about the deadly nature of the 2009 H1N1 influenza virus?
A) H1N1 affected the elderly. B) H1N1 affected healthy young people. C) H1N1 affected birds. D) H1N1 affected pigs.