Cumulative Exam Answers

Which best explains why a scientific idea would lack scientific consensus?

What is the end result of the eukaryotic cell cycle?

Which structure will form when a primitive cell engulfs an aerobic bacterium?

Which most accurately describes the basis of the scientific method?

A new multicellular organism has been discovered, and scientists want to study the organism’s cell structures, including organelles. Which microscope should they use?

Which statement best summarizes the importance of meiosis to reproduction?

Which statement best describes the overall change that occurs as a result of mitosis?

Rachel is performing an acid-base titration. She hopes to determine the concentration of an unknown acid solution to two decimal places. Which is the best tool to find the volume of the base that she needs to neutralize the acid?

A cell begins to send out incorrect chemical signals to neighboring cells. During which phase of the cell cycle did the cause of the change most likely happen?

A scientist asked a question that was based on an observation. What should the scientist do next?

Which two microscopes generate three-dimensional images?

After observing a moth that is camouflaged against dark-colored bark, a scientist asks a question. The scientist discovers that the question has already been asked and answered by several investigations. What should the scientist do?

Two scientists write a paper detailing their research and conclusions and submit it to a scientific journal. Several months later, the publisher sends them back the paper. Many comments from several fellow scientists are attached. Which step will the authors of the paper most likely take next?

Which type of information is best represented by a chart?

Which series of diagrams correctly represents the order of mitosis?

What is the primary purpose of writing a lab report?

Which is not something that occurs in translation?

Which microscope uses a probe to map atoms on the surface of a specimen?

Sarah performs an experiment to see whether bees prefer red flowers or yellow flowers. Look at this table of results from the experiment. Number of bees found on yellow flowersNumber of bees found on red flowersDay 11214Day 21020Day 31418Day 41215What is the independent variable in this investigation?

Which diagram correctly shows how homozygous alleles are found on homologous chromosomes?

Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. What is the purpose of growing cancer cells in a laboratory?

Read the passage about bird food and bird watching. Noted scientist Dr. Elsa Birde described the effect of adding a mixture of dried apples and raisins to the previous feed of sunflower seeds, millet, thistle seed, and cracked corn in bird feeders in her yard. Over three years, Dr. Birde observed that the new mixture increased the number of songbirds at her feeders, especially during the months of April and May. As she has done for several years, Dr. Birde recorded, at the same time each day, the number of birds at each of her four feeders. She noted that the third year using the mixture coincided with the largest increase. There was a twenty-five percent increase in the number of songbirds over times when this mixture was not used. Dr. Birde also noted that in the third year she used a specific ratio of the ingredients, carefully measuring, which she had not done in previous years. The third year also had a warmer than normal spring, and a construction project began in a neighborhood near Dr. Birde’s. Dr. Birde is now going to produce this formula for sale and advertise to customers that they may see the same twenty-five percent increase in songbirds at their feeders.Dr. E. Birde, Journal of Scientific Bird FeedingWhich scientific claim can be made?

A scientist publishes a paper that states that changes in the levels of gases in the atmosphere of a moon of Saturn indicate that there may be extraterrestrial life on that moon. Which statement correctly answers whether the question of alien life on this moon is scientific?

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

There is little sunlight at high latitudes during the winter, so few crops can grow even if temperatures are regulated. To address this problem, special lamps can be used in greenhouses. These lamps allow plants to grow during the winter months. Scientific knowledge of which topic was necessary to solve this problem?