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NYS Regents

NEW YORK STATE REGENTS EXAMS
LIVING ENVIRONMENT - JANUARY 2003

16 The diagram below illustrates the change that occurred in the physical appearance of a rabbit population over a 10-year period.

Which condition would explain this change over time?

(1) a decrease in the mutation rate of the rabbits with black fur
(2) a decrease in the advantage of having white fur
(3) an increase in the advantage of having white fur
(4) an increase in the chromosome number of the rabbits with black
fur

17 The diagram below represents some stages of early embryonic
development.

Which process is represented by the arrows in the diagram?

(1) meiosis           (3) mitosis
(2) fertilization      (4) evolution

18 The reproductive system of the human male produces gametes and

(1) transfers gametes to the female for internal fertilization
(2) produces enzymes that prevent fertilization
(3) releases hormones involved in external fertilization
(4) provides an area for fertilization

19 Blood can be tested to determine the presence of the virus associated
with the development of AIDS. This blood test is used directly for

(1) cure               (3) diagnosis
(2) treatment      (4) prevention

20 The equation below represents a summary of a biological process.

carbon dioxide + water
glucose + water + oxygen

This process is completed in

(1) mitochondria      (3) cell membranes
(2) ribosomes          (4) chloroplasts

 

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