New York State Chemistry RegentsNew York State Earth Science Regents

 
Evolution: Change Over Time
Living Environment Regents June 2008 Question 08 PDF Print E-mail
Thursday, 23 April 2009 05:34
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Bacteria can reproduce at tremendous speeds.  Some bacteria can reproduce as often as once every 20 minutes!  However, bacteria have to have certain conditions in which to reproduce.  These conditions are not often met, and that is one thing that keeps bacteria from growing out of control.
Correct Answer: Option 4
 
Living Environment Regents June 2008 Question 13 PDF Print E-mail
Thursday, 23 April 2009 05:55
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Natural selection acts on the phenotype, or the observable characteristics of an organism, such that individuals with favorable phenotypes are more likely to survive.

Natural selection acts on an organism's phenotype or physical characteristics. A phenotype is any observable characteristic or trait of an organism: such as its morphology, development, biochemical or physiological properties, or behavior. Phenotypes result from the expression of an organism's genes as well as the influence of environmental factors and possible interactions between the two. The genotype of an organism is the inherited instructions it carries within its genetic code

Correct Answer: Option 2
 
Living Environment Regents June 2008 Question 41 PDF Print E-mail
Thursday, 23 April 2009 07:37
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The diagram above clearly indicates that option 3 is the correct statement.

Correct Answer: Option 3
 


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