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BIO 156 Midterm Review RIO Exam Questions and Answers
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BIO 156 Midterm Review RIO Exam Questions and Answers
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BIO 156 Midterm Review RIO ExamQuestions and Answers
Life is organized in a hierarchical fashion. Which one of the following sequences
illustrates that hierarchy as it increases in complexity? - Answer -molecule → cell →
tissue → organ → organ system → organism → population → community → ecosystem
The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest (a
colony of wasps), two squirrels, and millions of bacteria. Together, all of these
organisms represent - Answer -a community
The ultimate source of energy flowing into nearly all ecosystems is - Answer -sunlight
A consumer eating a producer represents - Answer -a transfer of chemical nutrients and
energy
The formation of systems typically results in the appearance of novel characteristics
called - Answer -emergent properties
A scientist examining a group of cells under the microscope notices the presence of
nuclei within these cells. Chemical tests reveal that each cell is photosynthetic and is
surrounded by a wall composed of cellulose. These cells must come from an organism
that is a member of the Kingdom - Answer -Plantae
Which one of the following statements is not consistent with Darwin's mechanism of
natural selection? - Answer -Individual organisms exhibit genetic change during their life
spans to better fit their environment
A hypothesis is - Answer -a tentative answer to some question.
A scientist performs a controlled experiment. This means that - Answer -two
experiments are conducted, one differing from the other by only a single variable.
The nucleus of an atom contains - Answer -protons and neutrons
Your instructor asks you to look into your microscope to see a prokaryotic cell. You will
be looking for a cell that - Answer -has a membrane, but no nucleus.
, Which of the following statements about radioactive isotopes is/are true? - Answer -The
energy emitted by radioactive isotopes can break chemical bonds and cause molecular
damage in cells.
The smallest unit of an element is - Answer -an atom.
In conducting a proper scientific experiment, which of the following would you not do? -
Answer -Change the data that you collect so that it matches how you thought the
experiment would come out.
A(n) __________ forms when two atoms share electrons. - Answer -covalent bond
The term biodiversity refers to - Answer -the tremendous variety of life all around us on
Earth.
In plants, the transport of water from roots to leaves against the force of gravity is
possible due to this property of water: - Answer -Cohesion.
The ability of water molecules to form hydrogen bonds with other water molecules is
critical to - Answer --evaporative cooling of skin surfaces
-the movement of water from the roots of a tree to its leaves.
-the milder temperatures of coastal regions compared to inland areas.
-the ability of certain insects to walk on the surface of water
As ice melts, - Answer -hydrogen bonds are broken
A solute is - Answer -the substance that is dissolved in solution.
Compared to a solution of pH3, a solution of pH1 is - Answer -100 times more acidic.
Carbon is able to form an immense diversity of organic molecules because of carbon's -
Answer --tendency to form covalent bonds.
-ability to bond with up to four other atoms.
-capacity to form single and double bonds.
-ability to bond together to form extensive, branched, or unbranched carbon skeletons
Many names for sugars end in the suffix - Answer --ose
Which one of the following lists contains only polysaccharides? - Answer -cellulose,
starch, and glycogen
A diet high in animal products may increase the risk for atherosclerosis. This is because
- Answer -most animal fats are saturated and some animal products contain trans fats.
Sucrose is formed - Answer -from two monosaccharides by dehydration synthesis
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