BI112 Quiz 1

BI112 Quiz 1 - Exam Name_ MULTIPLE CHOICE. Choose the one...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria 1) A) to be more contagious than the prior generation. B) to be more resistant to that antibiotic. C) to be less virulent than the previous population. D) to be just as susceptible to that antibiotic as was the previous generation. E) to die out due to the drastic decrease in population size. 2) The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels, and millions of bacteria. Together, all of these organisms represent 2) A) a population. B) the biosphere. C) a community. D) an ecosystem. E) a species. 3) Which of the following statements about genetics is true ? 3) A) Each organism has its own unique DNA code. B) Genes are proteins that produce DNA. C) DNA relies upon five different building blocks as the alphabet of inheritance. D) Differences among organisms reflect different nucleotide sequences in their DNA. E) Each DNA molecule is a single strand of nucleotides. 4) You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This prediction is an example of 4) A) a type of observation. B) an experimental question. C) a type of control. D) an experiment. E) a hypothesis. 5) As the environment changes, 5) A) populations change with a purpose. B) natural selection adapts populations to their environment. C) populations will become extinct. D) new species will evolve by combining traits from several preexisting species. E) individuals develop new traits to adapt to the environment. 6) The role of a control in an experiment is to
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/07/2010 for the course BIO 112 taught by Professor Williams during the Spring '10 term at Portland CC.

Page1 / 4

BI112 Quiz 1 - Exam Name_ MULTIPLE CHOICE. Choose the one...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online