Exam 1: Biology and Its Themes

Use the following information when answering the following question. In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat. What hypothesis was being tested in the initial experiment with open versus sealed jars?

Which of the following is the correct order of organization of genetic material from smallest to largest?

All the organisms on your campus make up ________.

Which of these best demonstrates unity among organisms?

Use the following figure to answer the question. Describe groups labeled A and B.

Which of the following statements about genetic information is correct?

Following a scientific method, which of the following is the correct order of steps?

Which statement about ecological organization is correct?

Which branch of biology is concerned with the naming and classifying of organisms?

Which of these provides evidence of the common ancestry of all life?

A double-stranded DNA molecule with three guanine and five thiamine nucleotides (in 5 3 strand) has how many nucleotides in total?

Two organisms are ________ if they share more classification levels.

Three important research developments that have made the genomic and proteomic approaches possible are ________.

Which of the following statements best distinguishes hypotheses from theories in science?

Which of the following is the quality of a good scientific hypothesis?

Use the following information when answering the following question. In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat. In both experiments, flies appeared in all of the open jars and only in the open jars. Which one of the following statements is correct?

Why is a scientific topic best discussed by people of varying points of view, from different subdisciplines, and representing diverse cultures?

Which of the following best describes a controlled experiment?

Use the information in the graph to answer the following question. The data can best be used to address which of the following questions?

To understand the chemical basis of inheritance, we must understand the molecular structure of DNA. This is an example of the application of which concept to the study of biology?