New York State Chemistry RegentsNew York State Earth Science Regents

Living Environment Regents June 2006 Question 69 PDF Print E-mail


Correct Answer: Biological evolution.

Evolution is the change in the genetic material of a population of organisms from one generation to the next. Though the changes produced in any one generation are small, differences accumulate with each generation and over time because substantial changes in the organisms. This process can culminate in the emergence of new species, of which happened to the finches of Galapagos island. Indeed, the similarities between finches suggest that all known species are descended from a common ancestor (or ancestral gene pool) through this process of gradual divergence.

Option 1 is incorrect. Biodiversity is not absent in the situation stated. It was said that there were 14 varieties of finches; therefore, there is biodiversity in the island.

Finches reproduce sexually. The male bird's sexual organs consist of paired testes. The female bird's sexual organs consist of only a left ovary and oviduct. Hence, option 3 is incorrect. Asexual reproduction is the primary form of reproduction for single-celled organisms such the archaea, bacteria, and protists. Many plants and fungi reproduce asexually as well.

Though there is lack of competition in between the finch varieties, this has no direct effect on the variety of finches that arose.


You must be a registered user to post comments.

Copyright Information

All works and materials contained within this site Copyright © 2009 Technology Strategies For Success inc.


We are not affiliated with, nor endorsed by, the New York State Education Department.

The information contained in this website is for general information purposes only. The information is provided by "Technology Strategies for Success" and while we strive to keep the information up-to-date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.