Dr. Katherine Pollard, a biostatistical researcher, recently changed the method that she used to compare human and chimpanzee DNA. Her research showed that the differences between the two species’ DNA are in segments called switches, which turn certain genes on or off. What is the most likely outcome of Dr. Pollard’s research?
A marine biologist is concerned about clown fish in a section of the coral reef. Which step of the inquiry process will she perform to begin an investigation of the clown fish?
Which of the following values is equal to 1 micrometer?
Which would a scientist most likely do before asking a question that could lead to a scientific experiment?
Henry plans to monitor the change in concentration of an acid during a chemical reaction. He wants to collect data every 0.1 seconds and then to graph his data and insert it into a text document. Which pair of tools would be best for Henry to use?
Read the observation, question, and hypothesis.Observation: Hotter water seems to produce more bubbles than cold water when it is mixed with dish soap.Question: Does water temperature affect the amount of bubbles that are produced from dish soap?Hypothesis: Hot water produces more bubbles than cold water when it is mixed with dish soap.D’Angela will mix soap and water in a clean beaker four times. To test her hypothesis, which conditions should change or remain the same each time?
What is one benefit of studying biology?
A small number of scientists disagree that global climate change is caused by human activity. However, scientific consensus supports the idea that human activity is affecting climate. This is possible because
In what way would a digital thermometer be preferable to those from a liquid-based thermometer?
In a scientific investigation of lakes, the depth of a lake is most likely to be measured in
Which best explains why a scientific idea would lack scientific consensus?
A small amount of chemical splashes in Frank’s eye. What should Frank do immediately?
Which subject is most likely to be studied by a biologist?
How can a liquid be drawn into a pipette safely?
Edward Jenner’s smallpox inoculation experiment was based on his observation that dairymaids who had had cowpox did not contract smallpox. How did Jenner form his hypothesis from this observation?
What is the main purpose of controlled variables in an experiment?
Which waste items should always be discarded in the hazardous waste container?
Which tool can be used to determine the volume of a metal bolt?
A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?
In what way do investigations build scientific knowledge?
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