New York State Chemistry RegentsNew York State Earth Science Regents

 
Evolution: Change Over Time
Living Environment Regents August 2008 Question 04 PDF Print E-mail
Thursday, 23 April 2009 11:31

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Correct Answer – Option 2 – There would be little chance for variation within the population.

Cloning in biology is the process of producing populations of genetically-identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually.

Cloning does not assure adaptation to changes in environment, rapid evolution or faster mutation rate hence the options 1, 3 and 4 are incorrect.

 
Living Environment Regents August 2008 Question 15 PDF Print E-mail
Thursday, 23 April 2009 11:52

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Correct Answer – Option 4 – bright-colored males

Since, the male offspring inherits the bright colors of the father, the option of dull-coloured males and bright-colored females is not possible. Also there is no assurance of dull-colored females. Hence, option 1, 2, 3 are incorrect.

 
Living Environment Regents August 2008 Question 16 PDF Print E-mail
Thursday, 23 April 2009 11:54

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Correct Answer – Option 2 – number of their ATP Molecules

ATP - Adenosine Tri Phosphate carries the energy necessary to facilitate all of the processes of human metabolism, but does not provide any significant information to study evolution.

However, the methods of reproduction, sequences in the DNA molecules and structure of protein molecules help in determining evolutionary relationships between organisms.

Hence, option2 is the odd one out.

Last Updated on Monday, 30 November 2009 15:11
 
Living Environment Regents August 2008 Question 17 PDF Print E-mail
Thursday, 23 April 2009 11:57

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Correct Answer – Option 1

Behavioral genetics plays a significant role involves multiple genes. Studies of genes and behavior require analysis of families and populations for comparison of those who have the trait in question with those who do not. The result often is a statement of heritability. If the population or the environment changes, the heritability most likely will change as well. Most important, heritability statements provide no basis for predictions about the expression of the trait in question in any given individual

 
Living Environment Regents August 2008 Question 47 PDF Print E-mail
Friday, 24 April 2009 11:06
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The relationship between the distance to the food source and the number of waggle runs in 15 seconds is -As one variable increases the other decreases or the closer the food source, the more waggle runs in 15 seconds.
 
Living Environment Regents August 2008 Question 48 PDF Print E-mail
Friday, 24 April 2009 11:15
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If bees have better access to food, they can produce more offspring. By performing this dance, successful foragers can share with their hive mates information about the direction and distance to patches of flowers yielding nectar and pollen, to water sources, or to new housing locations.
 
Living Environment Regents August 2008 Question 49 PDF Print E-mail
Friday, 24 April 2009 11:17

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Correct Answer: Option 1 – behavioral adaptation as a result of natural selection

Species of Bees do not get replaced by new ones. Hence, Option 2 is incorrect.

Gene structure of Bees does not get altered as a result of diet. Hence, option 3 is incorrect.

Bees reproduce sexually. Hence, option 4 is incorrect.

 


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