Bio Chapter 1

As the environment changes, A)natural selection adapts populations to their environment. B) populations will become extinct. C) new species will evolve by combining traits from several D) preexisting species. populations change with a purpose. E) individuals develop new traits to adapt to the environment.

A) natural selection adapts populations to their environment.

Which of the following statements is not consistent with Darwin's theory of natural selection? A) Factors in the environment result in some organisms with better reproductive success than others. B) Individual organisms exhibit genetic change during their life spans to better fit their environment. C) Natural selection can lead to the appearance of new species. D) Individuals in a population exhibit variations, some of which are heritable. E) Natural selection is based in part on the overproduction of offspring.

B) Individual organisms exhibit genetic change during their life spans to better fit their environment.

Which of the following statements about genetics is true? A) Genes are proteins that produce DNA. B) Each organism has its own unique DNA code. C) Differences among organisms reflect different nucleotide sequences in their DNA. D) Each DNA molecule is a single strand of nucleotides. E) DNA relies upon five different building blocks as the alphabet of inheritance.

C) Differences among organisms reflect different nucleotide sequences in their DNA.

The role of a control in an experiment is to A) prove that a hypothesis is correct and ensure repeatability. B) prove that a hypothesis is correct. C) provide a basis of comparison to the experimental group. E) ensure repeatability. D) counteract the negative effect of the experiment.

C) provide a basis of comparison to the experimental group.

What Feature is common to Prokaryotes? A. Single Cells B. Membership in the Kingdom Monera C. Cell Walls D. Photosynthesis E. A Nucleus

Cell Walls

Which of the Following Statements about the Properties of Life is FALSE? A. All organisms have the ability to respond to stimuli from the environment. B. All organisms have the ability to take in energy and use it. C. All organisms have a complex organization. D. All organisms have the ability to reproduce. E. All organisms have the ability to maintain a constant internal temperature.

E. All organisms have the ability to maintain a constant internal temperature.