GALES 10/29 Bio Review Session

Which of the following statements about science is accurate?

• Science deals with the investigation of supernatural events and creatures

• Science is a list of beliefs and facts that is constant and never changing

• Science involves collecting and organizing data about the natural world

• Science is the process of finding evidence that supports what you already think

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Astrology is an example of pseudoscience. Why is astrology considered a pseudoscience, unlike astronomy, which is a science?

• because astrology is older than astronomy

• because it can be easily replicated by other scientists

• because is not based on empirical evidence

• because it is based on the scientific method

Some investigations can be identified as science and some are clearly not science. Which of the following statements would most likely be approved by the scientific community as being the results of a valid scientific investigation?

• The results have been consistently evaluated by other members of the scientific community.

• The results have been studied by enough scientists and are felt to no longer be open to change.

• The results have been supported by so much experimentation that no further research is necessary.

• The results have been agreed to by so many top scientists that they are now written as a scientific law.

In a scientific investigation, what is important about the number of objects or events being tested?

• They are equal to the total statistical population.

• It must estimated how likely it is that an unwanted outcome will occur.

• They are equal to the mean number of objects or events not sampled.

• The sample size is large enough to give an accurate estimate for the whole population.

Which of the following is NOT criteria for science?

• The results can be verified.

• Relies on anecdotal evidence.

• Seeks to falsify claims through testing.

• Is derived from experimentation and observations.

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Which of the following would provide the most useful scientific evidence to support the hypothesis that mermaids, mythical sea creatures, actually exist?

• high resolution photographs of the creature

• a collection of scales and secretions recovered from the creature

• GPS data indicating the locations of reliable sightings of the creature

• good documentation of the mermaid’s range, habits and environmental niche

Biotechnology is a broad field of study that can be applied to many different sciences, such as biology, chemistry, physics, engineering, and computer science. Which of the following answers accurately highlights the characteristics of biotechnology?

• It involves the use of living organisms and manipulation of genetic information.

• It involves the use of living organisms but does not alter genetic information.

• Focuses on non-living systems and the study of inorganic materials like metals, minerals, and salts.

• Focuses on non-living systems and making a product like a machine or piece of equipment.

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Cloning organisms has many advantages for humans including improving the food supply, providing stem cell therapy, and protecting endangered species. What would be a concern associated with humans cloning endangered species?

• increase in the genetic variability of the species

• increase in the population of the species

• increase in the number of predators

• increase in genetic abnormalities

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Which statement best explains the reason some insects can walk across the surface of a lake?

• Water is a polar molecule, and its adhesiveness causes good capillary action

• Water is a nonpolar molecule, and its cohesiveness causes good capillary action

• Water is a polar molecule, and its cohesiveness causes high surface tension

• Water is a nonpolar molecule, and its adhesiveness causes high surface tension

What property of a water molecule allows hydrogen bonds to form among adjacent molecules?

• the strong covalent bonds that hold the oxygen atom to each hydrogen atom

• the ionic bonds that form after the molecule separates into a hydroxide ion (OH–) and hydrogen ion (H+).

• the small size of the two hydrogen atoms compared to the oxygen atom.

• the polarity of the molecule, which involves a slightly negative oxygen atom and slightly positive hydrogen atoms